Update iana-enum-template.txt

Author: boucadair

templates/iana-enum-template.txt

@@ -31,9 +31,9 @@ and sub-statements thereof, should be defined:
 Unassigned or reserved values are not present in the module.
 
 When the "iana-foo" YANG module is updated, a new "revision"
-statement with a unique revision date needs to be added in front of the
-existing revision statements. The "revision" statement MUST contain 
-both "description" and "reference" substatements as follows.
+statement with a unique revision date needs to be added in front of
+the existing revision statements. The "revision" statement MUST 
+contain both "description" and "reference" substatements as follows.
 
 The "description" substatement captures what changed in the
 revised version. Typically, the description enumerates the changes