TIL: find has precedence rules for its operators

The old version was essentially doing:

(find files matching `*.rs`) OR (find files matching `*.stderr` AND exec dos2unix)

Author: phansch

.travis.yml

@@ -40,7 +40,7 @@ install:
       fi
       if [ "$TRAVIS_OS_NAME" == "windows" ]; then
         choco install windows-sdk-10.0
-        find tests/ui/* -name '*.rs' -or -name '*.stderr' -exec dos2unix '{}' +
+        find tests/ui/* \( -name '*.rs' -or -name '*.stderr' \) -exec dos2unix '{}' +
       fi
     fi