criu --help: rectify --skip-in-flight

Such a lengthy description is not quite suitable for --help output.
Also, it violates 80 columns and looks ugly as a result.
Fix both issues.

Was:
     --skip-in-flight   this option skips in-flight TCP connections.
                        if TCP connections are found which are not yet completely
                        established, criu will ignore these connections in favor
                        of erroring out.

Now:
     --skip-in-flight   skip (ignore) in-flight TCP connections
Signed-off-by: Kir Kolyshkin <kir@openvz.org>
Acked-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>

criu/crtools.c

@@ -832,10 +832,7 @@ usage:
 "                        allow external unix connections (optional arguments\n"
 "                        are socketpair inode(s) that allow one-sided dump)\n"
 "     --" SK_EST_PARAM "  checkpoint/restore established TCP connections\n"
-"     --" SK_INFLIGHT_PARAM "   this option skips in-flight TCP connections.\n"
-"                        if TCP connections are found which are not yet completely\n"
-"                        established, criu will ignore these connections in favor\n"
-"                        of erroring out.\n"
+"     --" SK_INFLIGHT_PARAM "   skip (ignore) in-flight TCP connections\n"
 "  -r|--root PATH        change the root filesystem (when run in mount namespace)\n"
 "  --evasive-devices     use any path to a device file if the original one\n"
 "                        is inaccessible\n"