kiss: contains() fixes and bug fix for repository paths containing spaces.

kiss

@@ -21,7 +21,15 @@ die() {
 }
 
 contains() {
-    case " $1 " in *" $2 "*) return 0; esac; return 1
+    _sep=${3:- }
+
+    case "${_sep}${1}${_sep}" in
+        *"${_sep}${2}${_sep}"*)
+            return 0
+        ;;
+    esac
+
+    return 1
 }
 
 prompt() {
@@ -1198,8 +1206,8 @@ pkg_updates() {
                 git_root=$(git rev-parse --show-superproject-working-tree)
                 cd "${git_root:-.}"
 
-                contains "$repos" "$PWD" || {
-                    repos="$repos $PWD "
+                contains "$repos" "$PWD" : || {
+                    repos="$repos:$PWD"
 
                     # Display a tick if signing is enabled for this repository.
                     case $(git config merge.verifySignatures) in
@@ -1335,7 +1343,8 @@ args() {
     case $action in
         a|alternatives|i|install|r|remove)
             [ -z "$1" ] || [ -w "$KISS_ROOT/" ] || [ "$uid" = 0 ] || {
-                as_root HOME="$HOME" \
+                as_root \
+                    HOME="$HOME" \
                     XDG_CACHE_HOME="$XDG_CACHE_HOME" \
                     KISS_CHOICE="$KISS_CHOICE" \
                     KISS_COLOR="$KISS_COLOR" \