kiss-netns: fix getting pid fail when called by non-privileged user

Signed-off-by: Jianhong Yin <[email protected]>

kiss-netns

@@ -10,7 +10,7 @@ P=$0; [[ $0 = /* ]] && P=${0##*/}
 switchroot() {
 	local P=$0 SH=; [[ $0 = /* ]] && P=${0##*/}; [[ -e $P && ! -x $P ]] && SH=$SHELL
 	[[ $(id -u) != 0 ]] && {
-		echo -e "\E[1;30m{WARN} $P need root permission, switch to:\n  sudo $SH $P $@\E[0m"
+		echo -e "\E[1;30m{WARN} $P need root permission, switch to:\n  sudo $SH $P $*\E[0m"
 		exec sudo $SH $P "$@"
 	}
 }
@@ -467,6 +467,7 @@ delif() {
 }
 
 # command line parse
+oat=("$@")
 _at=`getopt -o hvdn:x::f \
 	--long help \
     -a -n "$0" -- "$@"`
@@ -483,7 +484,7 @@ while true; do
 	esac
 done
 
-switchroot "$@"
+switchroot "${oat[@]}"
 # __prepare__
 command -v tmux >/dev/null || dep+=\ tmux
 command -v dhclient >/dev/null || dep+=\ dhclient