Flip flag --incompatible_remote_use_new_exit_code_for_lost_inputs

so that when remote cache evicts blobs, Bazel will exit with code 39.

RELNOTES[INC]: When remote cache evicts blobs, Bazel will exit with code 39.

PiperOrigin-RevId: 509499179
Change-Id: Ic218cd5b91cfaa44cf96742325af6badd87abce4

Author: coeuvre

src/main/java/com/google/devtools/build/lib/remote/options/RemoteOptions.java

@@ -660,7 +660,7 @@ public RemoteOutputsStrategyConverter() {
 
   @Option(
       name = "incompatible_remote_use_new_exit_code_for_lost_inputs",
-      defaultValue = "false",
+      defaultValue = "true",
       documentationCategory = OptionDocumentationCategory.REMOTE,
       effectTags = {OptionEffectTag.UNKNOWN},
       metadataTags = {OptionMetadataTag.INCOMPATIBLE_CHANGE},

src/test/java/com/google/devtools/build/lib/remote/BuildWithoutTheBytesIntegrationTest.java

@@ -446,7 +446,6 @@ public void remoteCacheEvictBlobs_exitWithCode39() throws Exception {
     getOutputPath("a/bar.out").delete();
     getOutputBase().getRelative("action_cache").deleteTreesBelow();
     restartServer();
-    addOptions("--incompatible_remote_use_new_exit_code_for_lost_inputs");
 
     // Clean build, foo.out isn't downloaded
     buildTarget("//a:bar");