git-check-all, git-update-all: arithmetic exit-code Fix (set -e)

((counter++)) gibt exit-code 1 wenn counter vorher 0 war.
Mit set -e bricht das Skript dann sofort ab. Fix: || true

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

bin/git-check-all.sh

@@ -89,7 +89,7 @@ dirty_repos=()
 
 for gitdir in "${sorted_gitdirs[@]}"; do
     repo_dir="${gitdir%/.git}"
-    ((total++))
+    ((total++)) || true
 
     cd "$repo_dir" || continue
 
@@ -113,10 +113,10 @@ for gitdir in "${sorted_gitdirs[@]}"; do
     ((behind > 0)) && is_dirty=true
 
     if $is_dirty; then
-        ((dirty++))
+        ((dirty++)) || true
         dirty_repos+=("$repo_dir")
     else
-        ((clean++))
+        ((clean++)) || true
         $SHOW_ALL || continue
     fi