Update Xbuild4Windows.yml

Author: rasa

.github/workflows/Xbuild4Windows.yml

@@ -101,25 +101,23 @@ jobs:
     - name: "🔧 Apply Windows Portability Patches"
       run: |
         function b() {
-          echo "Entering b()"
           bak=$(find . -type f -name '*.bak' | head -n 1)
-          printf "bak=%s\n" "${bak}"
           test -z "${bak}" && return
           src=${bak/.bak/}
-          printf "src=%s\n" "${src}"
           n=1
           while : ; do
             patch=${src}-${n}.patch
-            printf "patch=%s\n" "${patch}"
             test -f "${patch}" || break
             ((n++))
           done
-          echo Executing diff -u -w "${bak}" "${src}"
           diff -u -w "${bak}" "${src}" >"${patch}" || true
           rm -f "${bak}" || true
+          if [[ ! -s "${patch}" ]]; then
+            rm -f "${patch}" || true
+            return 0
+          fi
           echo "${patch}":
           cat "${patch}"
-          echo "Leaving b()"
           return 0
         }
         cd nano