gluster_volume: Typofix in docs (equals, not colon)

system/gluster_volume.py

@@ -108,7 +108,7 @@ author: '"Taneli Leppä (@rosmo)" <taneli@crasman.fi>'
 
 EXAMPLES = """
 - name: create gluster volume
-  gluster_volume: state=present name=test1 bricks=/bricks/brick1/g1 rebalance=yes cluster:"{{ play_hosts }}"
+  gluster_volume: state=present name=test1 bricks=/bricks/brick1/g1 rebalance=yes cluster="{{ play_hosts }}"
   run_once: true
 
 - name: tune
@@ -127,7 +127,7 @@ EXAMPLES = """
   gluster_volume: state=absent name=test1
 
 - name: create gluster volume with multiple bricks
-  gluster_volume: state=present name=test2 bricks="/bricks/brick1/g2,/bricks/brick2/g2" cluster:"{{ play_hosts }}"
+  gluster_volume: state=present name=test2 bricks="/bricks/brick1/g2,/bricks/brick2/g2" cluster="{{ play_hosts }}"
   run_once: true
 """