keep backwards compatible f-string syntax

operations/module2view.py

@@ -106,7 +106,7 @@ class Rewriter:
                 outpaths.append(path)
                 continue
             subpath = path[len(str(self.installpath)) :].lstrip("/")  # match tail after installpath
-            log.debug(f"matching {subpath=}")
+            log.debug(f"matching subpath={subpath}")
             toolpath = self._package_re.match(subpath)
             if toolpath:
                 newpath = str(Path(self._viewpath) / toolpath.group("relative"))