Remove trailing blanks.

lib/quotearg.c

@@ -449,7 +449,7 @@ quotearg_buffer_restyled (char *buffer, size_t buffersize,
 				  goto use_shell_always_quoting_style;
 				}
 			  }
-			    
+
 			if (! iswprint (w))
 			  printable = 0;
 			m += bytes;

lib/quotearg.h

@@ -29,7 +29,7 @@ enum quoting_style
   {
     /* Output names as-is (ls --quoting-style=literal).  */
     literal_quoting_style,
-    
+
     /* Quote names for the shell if they contain shell metacharacters
        or would cause ambiguous output (ls --quoting-style=shell).  */
     shell_quoting_style,