Enable clang-format for Java

tautschnig · tautschnig · commit d16dd3b21a99 · 2019-07-18T16:03:03.000Z
This is to avoid clang-format silently aborting when encountering Java files, as happened in #4912. The configuration for Java likely needs tweaking to avoid mass-reformatting, but we might do so in an incremental fashion.
diff --git a/.clang-format b/.clang-format
@@ -84,5 +84,7 @@ SpacesInSquareBrackets: 'false'
 Standard: Cpp11
 TabWidth: '2'
 UseTab: Never
-
+---
+Language: Java
+ColumnLimit: '80'
 ...
