unshare: fix help text; select LONG_OPTS instead depending on them

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

diff --git a/util-linux/unshare.c b/util-linux/unshare.c
index 52e8f14215db1736405df7aec8ee519a9480e0b3..875e3f86e3048336e9c8ca6dfdc50b034a6e4734 100644 (file)
--- a/util-linux/unshare.c
+++ b/util-linux/unshare.c
@@ -9,12 +9,13 @@
 //config:config UNSHARE
 //config:      bool "unshare"
 //config:      default y
-//config:      depends on LONG_OPTS && !NOMMU
+//config:      depends on !NOMMU
 //config:      select PLATFORM_LINUX
+//config:      select LONG_OPTS
 //config:      help
 //config:        Run program with some namespaces unshared from parent.
 
-// depends on LONG_OPTS: it is awkward to exclude code which handles --propagation
+// needs LONG_OPTS: it is awkward to exclude code which handles --propagation
 // and --setgroups based on LONG_OPTS, so instead applet requires LONG_OPTS.
 // depends on !NOMMU: we need fork()
 
@@ -32,7 +33,7 @@
 //usage:     "\n       -p,--pid[=FILE]         Unshare PID namespace"
 //usage:     "\n       -U,--user[=FILE]        Unshare user namespace"
 //usage:     "\n       -f,--fork               Fork before execing PROG"
-//usage:     "\n       -r,--map-root-user      Map current user to root (implies -u)"
+//usage:     "\n       -r,--map-root-user      Map current user to root (implies -U)"
 //usage:     "\n       --mount-proc[=DIR]      Mount /proc filesystem first (implies -m)"
 //usage:     "\n       --propagation slave|shared|private|unchanged"
 //usage:     "\n                               Modify mount propagation in mount namespace"