Fix a typo: s/defintion/definition

--
PiperOrigin-RevId: 149026338
MOS_MIGRATED_REVID=149026338
diff --git a/src/main/java/com/google/devtools/build/lib/rules/SkylarkAttr.java b/src/main/java/com/google/devtools/build/lib/rules/SkylarkAttr.java
index 4b8c90da..4c18384 100644
--- a/src/main/java/com/google/devtools/build/lib/rules/SkylarkAttr.java
+++ b/src/main/java/com/google/devtools/build/lib/rules/SkylarkAttr.java
@@ -1428,7 +1428,7 @@
 
   /** A descriptor of an attribute defined in Skylark. */
   @SkylarkModule(
-    name = "attr_defintion",
+    name = "attr_definition",
     category = SkylarkModuleCategory.NONE,
     doc =
         "Representation of a definition of an attribute; constructed by <code>attr.*</code> "