correct lint failures

Author: reeba212

sdks/java/io/google-cloud-platform/src/main/java/org/apache/beam/sdk/io/gcp/spanner/SpannerReadSchemaTransformProvider.java

@@ -174,7 +174,7 @@ public void validate() {
           !Strings.isNullOrEmpty(this.getDatabaseId()),
           invalidConfigMessage + "Database ID must be specified.");
       if (Strings.isNullOrEmpty(this.getQuery())) {
-       checkArgument(
+        checkArgument(
             !Strings.isNullOrEmpty(this.getTableId()),
             invalidConfigMessage + "Table name must be specified for table read.");
         checkArgument(