fixup! fix(git-node): handle single-line commit messages

Author: aduh95

lib/landing_session.js

@@ -330,7 +330,7 @@ export default class LandingSession extends Session {
 
     const filterTrailer = (line) => ([key]) =>
       line.startsWith(key) &&
-          new RegExp(`^${RegExp.escape(key)}\\s*:`).test(line);
+          new RegExp(`^${RegExp.escape?.(key) ?? key}\\s*:`).test(line);
     const amended = original.trim().split('\n')
       .filter(line =>
         !line.includes(':') ||