(usage): Note that ``Mandatory arguments to long options are mandatory

for short options too.''

src/cp.c

@@ -168,6 +168,11 @@ Usage: %s [OPTION]... SOURCE DEST\n\
       fputs (_("\
 Copy SOURCE to DEST, or multiple SOURCE(s) to DIRECTORY.\n\
 \n\
+"), stdout);
+      fputs (_("\
+Mandatory arguments to long options are mandatory for short options too.\n\
+"), stdout);
+      fputs (_("\
   -a, --archive                same as -dpR\n\
       --backup[=CONTROL]       make a backup of each existing destination file\n\
   -b                           like --backup but does not accept an argument\n\

src/df.c

@@ -756,6 +756,11 @@ usage (int status)
 Show information about the filesystem on which each FILE resides,\n\
 or all filesystems by default.\n\
 \n\
+"), stdout);
+      fputs (_("\
+Mandatory arguments to long options are mandatory for short options too.\n\
+"), stdout);
+      fputs (_("\
   -a, --all             include filesystems having 0 blocks\n\
       --block-size=SIZE use SIZE-byte blocks\n\
   -h, --human-readable  print sizes in human readable format (e.g., 1K 234M 2G)\n\

src/du.c

@@ -190,6 +190,11 @@ usage (int status)
       fputs (_("\
 Summarize disk usage of each FILE, recursively for directories.\n\
 \n\
+"), stdout);
+      fputs (_("\
+Mandatory arguments to long options are mandatory for short options too.\n\
+"), stdout);
+      fputs (_("\
   -a, --all             write counts for all files, not just directories\n\
       --block-size=SIZE use SIZE-byte blocks\n\
   -b, --bytes           print size in bytes\n\

src/install.c

@@ -609,6 +609,9 @@ In the first two formats, copy SOURCE to DEST or multiple SOURCE(s) to\n\
 the existing DIRECTORY, while setting permission modes and owner/group.\n\
 In the third format, create all components of the given DIRECTORY(ies).\n\
 \n\
+"), stdout);
+      fputs (_("\
+Mandatory arguments to long options are mandatory for short options too.\n\
 "), stdout);
       fputs (_("\
       --backup[=CONTROL] make a backup of each existing destination file\n\

src/ln.c

@@ -350,6 +350,9 @@ than one TARGET, the last argument must be a directory;  create links\n\
 in DIRECTORY to each TARGET.  Create hard links by default, symbolic\n\
 links with --symbolic.  When creating hard links, each TARGET must exist.\n\
 \n\
+"), stdout);
+      fputs (_("\
+Mandatory arguments to long options are mandatory for short options too.\n\
 "), stdout);
       fputs (_("\
       --backup[=CONTROL]      make a backup of each existing destination file\n\

src/ls.c

@@ -3565,6 +3565,11 @@ usage (int status)
 List information about the FILEs (the current directory by default).\n\
 Sort entries alphabetically if none of -cftuSUX nor --sort.\n\
 \n\
+"), stdout);
+      fputs (_("\
+Mandatory arguments to long options are mandatory for short options too.\n\
+"), stdout);
+      fputs (_("\
   -a, --all                  do not hide entries starting with .\n\
   -A, --almost-all           do not list implied . and ..\n\
   -b, --escape               print octal escapes for nongraphic characters\n\

src/mkdir.c

@@ -62,6 +62,11 @@ usage (int status)
       fputs (_("\
 Create the DIRECTORY(ies), if they do not already exist.\n\
 \n\
+"), stdout);
+      fputs (_("\
+Mandatory arguments to long options are mandatory for short options too.\n\
+"), stdout);
+      fputs (_("\
   -m, --mode=MODE   set permission mode (as in chmod), not rwxrwxrwx - umask\n\
   -p, --parents     no error if existing, make parent directories as needed\n\
   -v, --verbose     print a message for each created directory\n\

src/mkfifo.c

@@ -56,6 +56,11 @@ usage (int status)
       fputs (_("\
 Create named pipes (FIFOs) with the given NAMEs.\n\
 \n\
+"), stdout);
+      fputs (_("\
+Mandatory arguments to long options are mandatory for short options too.\n\
+"), stdout);
+      fputs (_("\
   -m, --mode=MODE   set permission mode (as in chmod), not a=rw - umask\n\
 "), stdout);
       fputs (_("\

src/mknod.c

@@ -66,6 +66,11 @@ usage (int status)
       fputs (_("\
 Create the special file NAME of the given TYPE.\n\
 \n\
+"), stdout);
+      fputs (_("\
+Mandatory arguments to long options are mandatory for short options too.\n\
+"), stdout);
+      fputs (_("\
   -m, --mode=MODE   set permission mode (as in chmod), not a=rw - umask\n\
 "), stdout);
       fputs (_("\

src/mv.c

@@ -336,6 +336,11 @@ Usage: %s [OPTION]... SOURCE DEST\n\
       fputs (_("\
 Rename SOURCE to DEST, or move SOURCE(s) to DIRECTORY.\n\
 \n\
+"), stdout);
+      fputs (_("\
+Mandatory arguments to long options are mandatory for short options too.\n\
+"), stdout);
+      fputs (_("\
       --backup[=CONTROL]       make a backup of each existing destination file\n\
   -b                           like --backup but does not accept an argument\n\
   -f, --force                  do not prompt before overwriting\n\

src/shred.c

@@ -464,10 +464,15 @@ usage (int status)
   else
     {
       printf (_("Usage: %s [OPTIONS] FILE [...]\n"), program_name);
-      printf (_("\
+      fputs (_("\
 Overwrite the specified FILE(s) repeatedly, in order to make it harder\n\
 for even very expensive hardware probing to recover the data.\n\
 \n\
+"), stdout);
+      fputs (_("\
+Mandatory arguments to long options are mandatory for short options too.\n\
+"), stdout);
+      printf (_("\
   -f, --force    change permissions to allow writing if necessary\n\
   -n, --iterations=N  Overwrite N times instead of the default (%d)\n\
   -s, --size=N   shred this many bytes (suffixes like k, M, G accepted)\n\

src/touch.c

@@ -231,6 +231,11 @@ usage (int status)
       fputs (_("\
 Update the access and modification times of each FILE to the current time.\n\
 \n\
+"), stdout);
+      fputs (_("\
+Mandatory arguments to long options are mandatory for short options too.\n\
+"), stdout);
+      fputs (_("\
   -a                     change only the access time\n\
   -c, --no-create        do not create any files\n\
   -d, --date=STRING      parse STRING and use it instead of current time\n\