help text tweaks

function                                             old     new   delta
packed_usage                                       33547   33545      -2

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

coreutils/id.c

@@ -33,7 +33,7 @@
 /* BB_AUDIT SUSv3 compliant. */
 
 //usage:#define id_trivial_usage
-//usage:       "[OPTIONS] [USER]"
+//usage:       "[-ugGnr"IF_SELINUX("Z")"] [USER]"
 //usage:#define id_full_usage "\n\n"
 //usage:       "Print information about USER or the current user\n"
 //usage:	IF_SELINUX(

coreutils/mkdir.c

@@ -27,7 +27,7 @@
 /* http://www.opengroup.org/onlinepubs/007904975/utilities/mkdir.html */
 
 //usage:#define mkdir_trivial_usage
-//usage:       "[OPTIONS] DIRECTORY..."
+//usage:       "[-m MODE] [-p] DIRECTORY..."
 //usage:#define mkdir_full_usage "\n\n"
 //usage:       "Create DIRECTORY\n"
 //usage:     "\n	-m MODE	Mode"

coreutils/rmdir.c

@@ -20,7 +20,7 @@
 /* http://www.opengroup.org/onlinepubs/007904975/utilities/rmdir.html */
 
 //usage:#define rmdir_trivial_usage
-//usage:       "[OPTIONS] DIRECTORY..."
+//usage:       "[-p] DIRECTORY..."
 //usage:#define rmdir_full_usage "\n\n"
 //usage:       "Remove DIRECTORY if it is empty\n"
 //usage:     "\n	-p	Include parents"

coreutils/stat.c

@@ -40,7 +40,7 @@
 //kbuild:lib-$(CONFIG_STAT) += stat.o
 
 //usage:#define stat_trivial_usage
-//usage:       "[OPTIONS] FILE..."
+//usage:       "[-lt"IF_FEATURE_STAT_FILESYSTEM("f")"] "IF_FEATURE_STAT_FORMAT("[-c FMT] ")"FILE..."
 //usage:#define stat_full_usage "\n\n"
 //usage:       "Display file"
 //usage:            IF_FEATURE_STAT_FILESYSTEM(" (default) or filesystem")