build: pass program name to help2man after other options

* man/local.mk (.x.1): Move the program name argument down after
the last option argument when calling $(run_help2man).
While the other way would be accepted for the GNU help2man program,
it is not for the 'dummy-man' script (called as a fallback on
systems lacking perl).
The wrong order was introduced in commit v8.21-119-gb3578fc while
adding the --info-page option.

man/local.mk

@@ -187,8 +187,9 @@ endif
 	  && $(run_help2man)						\
 		     --source='$(PACKAGE_STRING)'			\
 		     --include=$(srcdir)/man/$$name.x			\
-		     --output=$$t/$$name.1 $$t/$$argv			\
+		     --output=$$t/$$name.1				\
 		     --info-page='\(aq(coreutils) '$$name' invocation\(aq' \
+		     $$t/$$argv						\
 	  && sed \
 	       -e 's|$*\.td/||g' \
 	       -e '/For complete documentation/d' \