Switch back the default for --incompatible_package_name_is_a_function

The value was changed in https://github.com/bazelbuild/bazel/commit/4a8bacd33d96b0499bb4d8303d285133268c01b4, but it is breaking downstream projects

#5827

RELNOTES: Revert the default of --incompatible_package_name_is_a_function to false.
PiperOrigin-RevId: 212297376
diff --git a/src/main/java/com/google/devtools/build/lib/syntax/SkylarkSemantics.java b/src/main/java/com/google/devtools/build/lib/syntax/SkylarkSemantics.java
index 0b5aef5..2062ae1 100644
--- a/src/main/java/com/google/devtools/build/lib/syntax/SkylarkSemantics.java
+++ b/src/main/java/com/google/devtools/build/lib/syntax/SkylarkSemantics.java
@@ -127,7 +127,7 @@
           .incompatibleGenerateJavaCommonSourceJar(false)
           .incompatibleNewActionsApi(false)
           .incompatibleNoSupportToolsInActionInputs(false)
-          .incompatiblePackageNameIsAFunction(true)
+          .incompatiblePackageNameIsAFunction(false)
           .incompatibleRangeType(false)
           .incompatibleRemoveNativeGitRepository(false)
           .incompatibleRemoveNativeHttpArchive(false)