nsenter: (usage) improve the alignment of the option descriptions

Perfect alignment is not possible, otherwise too little space remains
for the descriptions.

Also, slightly reword one description to fit within 80 columns again,
and align also a description that was missed by commit 986188d1da two
monts ago.

Signed-off-by: Benno Schulenberg <bensberg@telfort.nl>

diff --git a/sys-utils/nsenter.c b/sys-utils/nsenter.c
index 98da7551143bcaa7e90ce67568726ea6c5430360..e10ba9cf90ab1950a7f486db12f477aa4a72bd52 100644 (file)
--- a/sys-utils/nsenter.c
+++ b/sys-utils/nsenter.c
@@ -95,34 +95,34 @@ static void __attribute__((__noreturn__)) usage(void)
        fputs(_("Run a program with namespaces of other processes.\n"), out);
 
        fputs(USAGE_OPTIONS, out);
-       fputs(_(" -a, --all                    enter all namespaces\n"), out);
-       fputs(_(" -t, --target <PID>           target process to get namespaces from\n"), out);
-       fputs(_(" -m, --mount[=<file>|=:<nsid>]  enter mount namespace\n"), out);
-       fputs(_(" -u, --uts[=<file>|=:<nsid>]  enter UTS namespace (hostname etc)\n"), out);
-       fputs(_(" -i, --ipc[=<file>|=:<nsid>]  enter System V IPC namespace\n"), out);
-       fputs(_(" -n, --net[=<file>|=:<nsid>]  enter network namespace\n"), out);
-       fputs(_(" -N, --net-socket <fd>        enter socket's network namespace (use with --target)\n"), out);
-       fputs(_(" -p, --pid[=<file>|=:<nsid>]  enter pid namespace\n"), out);
+       fputs(_(" -a, --all                     enter all namespaces\n"), out);
+       fputs(_(" -t, --target <PID>            target process to get namespaces from\n"), out);
+       fputs(_(" -m, --mount[=<file>|=:<nsid>] enter mount namespace\n"), out);
+       fputs(_(" -u, --uts[=<file>|=:<nsid>]   enter UTS namespace (hostname etc)\n"), out);
+       fputs(_(" -i, --ipc[=<file>|=:<nsid>]   enter System V IPC namespace\n"), out);
+       fputs(_(" -n, --net[=<file>|=:<nsid>]   enter network namespace\n"), out);
+       fputs(_(" -N, --net-socket <fd>         enter socket's network namespace (needs --target)\n"), out);
+       fputs(_(" -p, --pid[=<file>|=:<nsid>]   enter pid namespace\n"), out);
        fputs(_(" -C, --cgroup[=<file>|=:<nsid>]  enter cgroup namespace\n"), out);
-       fputs(_(" -U, --user[=<file>|=:<nsid>] enter user namespace\n"), out);
-       fputs(_("     --user-parent            enter parent user namespace\n"), out);
-       fputs(_(" -T, --time[=<file>|=:<nsid>] enter time namespace\n"), out);
-       fputs(_(" -S, --setuid[=<uid>]         set uid in entered namespace\n"), out);
-       fputs(_(" -G, --setgid[=<gid>]         set gid in entered namespace\n"), out);
-       fputs(_("     --preserve-credentials   do not touch uids or gids\n"), out);
-       fputs(_("     --keep-caps              retain capabilities granted in user namespaces\n"), out);
-       fputs(_(" -r, --root[=<dir>]           set the root directory\n"), out);
-       fputs(_(" -w, --wd[=<dir>]             set the working directory\n"), out);
-       fputs(_(" -W, --wdns <dir>             set the working directory in namespace\n"), out);
-       fputs(_(" -e, --env                    inherit environment variables from target process\n"), out);
-       fputs(_(" -F, --no-fork                do not fork before exec'ing <program>\n"), out);
-       fputs(_(" -c, --join-cgroup            join the cgroup of the target process\n"), out);
+       fputs(_(" -U, --user[=<file>|=:<nsid>]  enter user namespace\n"), out);
+       fputs(_("     --user-parent             enter parent user namespace\n"), out);
+       fputs(_(" -T, --time[=<file>|=:<nsid>]  enter time namespace\n"), out);
+       fputs(_(" -S, --setuid[=<uid>]          set uid in entered namespace\n"), out);
+       fputs(_(" -G, --setgid[=<gid>]          set gid in entered namespace\n"), out);
+       fputs(_("     --preserve-credentials    do not touch uids or gids\n"), out);
+       fputs(_("     --keep-caps               retain capabilities granted in user namespaces\n"), out);
+       fputs(_(" -r, --root[=<dir>]            set the root directory\n"), out);
+       fputs(_(" -w, --wd[=<dir>]              set the working directory\n"), out);
+       fputs(_(" -W, --wdns <dir>              set the working directory in namespace\n"), out);
+       fputs(_(" -e, --env                     inherit environment variables from target process\n"), out);
+       fputs(_(" -F, --no-fork                 do not fork before exec'ing <program>\n"), out);
+       fputs(_(" -c, --join-cgroup             join the cgroup of the target process\n"), out);
 #ifdef HAVE_LIBSELINUX
-       fputs(_(" -Z, --follow-context   set SELinux context according to --target PID\n"), out);
+       fputs(_(" -Z, --follow-context          set SELinux context according to --target PID\n"), out);
 #endif
 
        fputs(USAGE_SEPARATOR, out);
-       fprintf(out, USAGE_HELP_OPTIONS(30));
+       fprintf(out, USAGE_HELP_OPTIONS(31));
        fprintf(out, USAGE_MAN_TAIL("nsenter(1)"));
 
        exit(EXIT_SUCCESS);