Fix release.yml: literal newlines inside printf broke the YAML

The Windows PATH step embedded real newlines in its printf strings, which
broke the block scalar and invalidated the whole workflow file (the push
run failed at parse; workflow_dispatch refused). The wrappers are plain
echo pairs now.

.github/workflows/release.yml

@@ -122,18 +122,13 @@ jobs:
       - name: Put chez on PATH (Windows)
         if: runner.os == 'Windows'
         run: |
-          printf '#!/bin/sh
-exec "%s/chez-install/bin/scheme" "$@"
-' "$GITHUB_WORKSPACE" > "$GITHUB_WORKSPACE/chez-install/bin/chez"
-          chmod +x "$GITHUB_WORKSPACE/chez-install/bin/chez"
-          echo "$GITHUB_WORKSPACE/chez-install/bin" >> "$GITHUB_PATH"
+          bindir="$GITHUB_WORKSPACE/chez-install/bin"
+          { echo '#!/bin/sh'; echo "exec \"$bindir/scheme\" \"\$@\""; } > "$bindir/chez"
+          chmod +x "$bindir/chez"
+          echo "$bindir" >> "$GITHUB_PATH"
           # cc is the build's compiler name; alias it to mingw gcc
-          printf '#!/bin/sh
-exec gcc "$@"
-' > /usr/local/bin/cc || printf '#!/bin/sh
-exec gcc "$@"
-' > "$GITHUB_WORKSPACE/chez-install/bin/cc"
-          chmod +x /usr/local/bin/cc 2>/dev/null || chmod +x "$GITHUB_WORKSPACE/chez-install/bin/cc"
+          { echo '#!/bin/sh'; echo 'exec gcc "$@"'; } > "$bindir/cc"
+          chmod +x "$bindir/cc"
 
       - name: Show Chez version
         run: chez --version