Remove part of regex causing false positives when checking versions

Author: rastating

lib/wpxf/wordpress/fingerprint.rb

@@ -218,7 +218,7 @@ def extension_version_pattern(type)
     when :readme
       # Example line:
       # Stable tag: 2.6.6
-      return /(?:stable tag|version):\s*(?!trunk)([0-9a-z.-]+)/i
+      return /(?:stable tag):\s*(?!trunk)([0-9a-z.-]+)/i
     when :style
       # Example line:
       # Version: 1.5.2