Enable --incompatible_expand_directories by default.

Fixes #6762

RELNOTES: --incompatible_expand_directories is enabled by default
PiperOrigin-RevId: 230413014
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 4cb4ef9..b9e5493 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
@@ -219,7 +219,7 @@
           .incompatibleDisallowLegacyJavaInfo(false)
           .incompatibleDisallowLoadLabelsToCrossPackageBoundaries(false)
           .incompatibleDisallowOldStyleArgsAdd(false)
-          .incompatibleExpandDirectories(false)
+          .incompatibleExpandDirectories(true)
           .incompatibleGenerateJavaCommonSourceJar(false)
           .incompatibleNewActionsApi(false)
           .incompatibleNoAttrLicense(false)
@@ -311,4 +311,3 @@
     public abstract SkylarkSemantics build();
   }
 }
-