chgrp: just call chown! :)

include/usage.h

@@ -169,11 +169,17 @@
 	"\t-v\tset the file's version/generation number"
 
 #define chgrp_trivial_usage \
-	"[OPTION]... GROUP FILE..."
+	"[-Rh"USE_DESKTOP("cvf")"]... GROUP FILE..."
 #define chgrp_full_usage \
 	"Change the group membership of each FILE to GROUP.\n" \
 	"\nOptions:\n" \
-	"\t-R\tChanges files and directories recursively"
+	"\t-R\tChanges files and directories recursively\n" \
+	"\t-h\tDo not dereference symbolic links" \
+	USE_DESKTOP( \
+	"\n\t-c\tList changed files" \
+	"\n\t-v\tList all files" \
+	"\n\t-f\tHide errors" \
+	)
 #define chgrp_example_usage \
 	"$ ls -l /tmp/foo\n" \
 	"-r--r--r--    1 andersen andersen        0 Apr 12 18:25 /tmp/foo\n" \