Support user.bazelrc
diff --git a/.bazelrc b/.bazelrc
index c1d9ef9..03b6d8a 100644
--- a/.bazelrc
+++ b/.bazelrc
@@ -4,3 +4,5 @@
 build --test_output=all
 build --verbose_failures
 
+# User-specific .bazelrc
+try-import %workspace%/user.bazelrc