[opengrok] Recognize form feed as a text character in PlainAnalyzer.isMagic()

[knut.hat...@sun.com]

Author: Knut Anders Hatlen <Knut.Hatlen at Sun.COM>
Repository: /hg/opengrok/trunk
Latest revision: d6c9458762a5d6a46e1a40f1a3b3016b3969d29d
Total changesets: 1
Log message:
Recognize form feed as a text character in PlainAnalyzer.isMagic()

Files:
        update: src/org/opensolaris/opengrok/analysis/plain/PlainAnalyzer.java