fix(command): Restore environment variables before calling exec

wait-for

@@ -1,5 +1,6 @@
 #!/bin/sh
 
+set -- "$@" -- "$TIMEOUT" "$QUIET" "$HOST" "$PORT" "$result"
 TIMEOUT=15
 QUIET=0
 
@@ -30,7 +31,15 @@ wait_for() {
 
  result=$?
  if [ $result -eq 0 ] ; then
- if [ $# -gt 0 ] ; then
+ if [ $# -gt 6 ] ; then
+ for result in $(seq $(($# - 6))); do
+ result=$1
+ shift
+ set -- "$@" "$result"
+ done
+
+ TIMEOUT=$2 QUIET=$3 HOST=$4 PORT=$5 result=$6
+ shift 6
  exec "$@"
  fi
  exit 0
@@ -47,8 +56,7 @@ wait_for() {
  exit 1
 }
 
-while [ $# -gt 0 ]
-do
+while :; do
  case "$1" in
  *:* )
  HOST=$(printf "%s\n" "$1"| cut -d : -f 1)