Update src/cmd/cmd.cpp [skip ci]

Co-authored-by: Fabian Müller <[email protected]>

src/cmd/cmd.cpp

@@ -177,7 +177,7 @@ void sync(const SyncCTX &ctx)
             }
             std::string s;
             while (true) {
-                qInfo() << "Remove all files?[y,n]";
+                qInfo() << "Remove all files? [y,n]";
                 std::getline(std::cin, s);
                 if (s == "y") {
                     abort(false);