Fix typo in GlobalCapbility documentation

Change-Id: Ibe899d717897d654ddde8fe10da313f544534ff1

gerrit-common/src/main/java/com/google/gerrit/common/data/GlobalCapability.java

diff --git a/gerrit-common/src/main/java/com/google/gerrit/common/data/GlobalCapability.java b/gerrit-common/src/main/java/com/google/gerrit/common/data/GlobalCapability.java
index 81d4fc9..67e9de6 100644
--- a/gerrit-common/src/main/java/com/google/gerrit/common/data/GlobalCapability.java
+++ b/gerrit-common/src/main/java/com/google/gerrit/common/data/GlobalCapability.java
@@ -28,7 +28,7 @@
    * has this capability can perform almost any other action, or can grant
    * themselves the power to perform any other action on the site. Most of
    * the other capabilities and permissions fall-back to the predicate
-   * "OR user has capablity ADMINISTRATE_SERVER".
+   * "OR user has capability ADMINISTRATE_SERVER".
    */
   public static final String ADMINISTRATE_SERVER = "administrateServer";