Fix typo in outputFilesForModule error message

Test: CI
Change-Id: I41f28a0412613458a0dad132006adfbc9fbbce2c
diff --git a/android/module.go b/android/module.go
index 2fe822f..4a6f5d1 100644
--- a/android/module.go
+++ b/android/module.go
@@ -2507,7 +2507,7 @@
 		paths := sourceFileProducer.Srcs()
 		return paths, nil
 	} else {
-		return nil, fmt.Errorf("module %q is not an SourceFileProducer or having valid output file for tag %q", pathContextName(ctx, module), tag)
+		return nil, fmt.Errorf("module %q is not a SourceFileProducer or having valid output file for tag %q", pathContextName(ctx, module), tag)
 	}
 }
 
diff --git a/java/sdk_library_test.go b/java/sdk_library_test.go
index cf1a6e1..a8a1494 100644
--- a/java/sdk_library_test.go
+++ b/java/sdk_library_test.go
@@ -606,7 +606,7 @@
 
 	t.Run("stubs.source", func(t *testing.T) {
 		prepareForJavaTest.
-			ExtendWithErrorHandler(android.FixtureExpectsAtLeastOneErrorMatchingPattern(`module "foo" is not an SourceFileProducer or having valid output file for tag ".public.stubs.source"`)).
+			ExtendWithErrorHandler(android.FixtureExpectsAtLeastOneErrorMatchingPattern(`module "foo" is not a SourceFileProducer or having valid output file for tag ".public.stubs.source"`)).
 			RunTestWithBp(t, bp+`
 				java_library {
 					name: "bar",
@@ -621,7 +621,7 @@
 
 	t.Run("api.txt", func(t *testing.T) {
 		prepareForJavaTest.
-			ExtendWithErrorHandler(android.FixtureExpectsAtLeastOneErrorMatchingPattern(`module "foo" is not an SourceFileProducer or having valid output file for tag ".public.api.txt"`)).
+			ExtendWithErrorHandler(android.FixtureExpectsAtLeastOneErrorMatchingPattern(`module "foo" is not a SourceFileProducer or having valid output file for tag ".public.api.txt"`)).
 			RunTestWithBp(t, bp+`
 				java_library {
 					name: "bar",
@@ -635,7 +635,7 @@
 
 	t.Run("removed-api.txt", func(t *testing.T) {
 		prepareForJavaTest.
-			ExtendWithErrorHandler(android.FixtureExpectsAtLeastOneErrorMatchingPattern(`module "foo" is not an SourceFileProducer or having valid output file for tag ".public.removed-api.txt"`)).
+			ExtendWithErrorHandler(android.FixtureExpectsAtLeastOneErrorMatchingPattern(`module "foo" is not a SourceFileProducer or having valid output file for tag ".public.removed-api.txt"`)).
 			RunTestWithBp(t, bp+`
 				java_library {
 					name: "bar",