RFR: JDK-8149787 test/java/util/regex/GraphemeTest.java source file has non-ascii character u+00f7

[Xueming Shen]

Hi,

Please help review the change for bug JDK-8149787, which "accidentally" 
embeds
couple non-ascii character u+00f7 in several comment lines. This will 
trigger
javac failure if using encoding=ascii. The fix is to replace the DIV 
with a simple
"+" character.

issue:   https://bugs.openjdk.java.net/browse/JDK-8149787
webrev:  http://cr.openjdk.java.net/~sherman/8149787/webrev/

Thanks,
Sherman