Fixed syntax error special casing OS X 10.4 in the Java ac-macro.
Fixed syntax error special casing OS X 10.4 in the Java ac-macro.

* build/ac-macros/java.m4: Removed extraneous white space around the equal sign
   for the variable assignment, and simplified the variable value.

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion