FreeBSD/ports ad8dcc9 (r444643)lang/gcc6-devel Makefile distinfo

Update to the 20170621 snapshot of GCC 6.3.1.

No longer default to building GCJ/libgcj on any platform, that is,
option JAVA no longer is the default anywhere.  lang/gcc6 retains
this for the time being as does lang/gcc5.

And indent JAVA_USES aligned with other entries.
DeltaFile
+2-5lang/gcc6-devel/Makefile
+3-3lang/gcc6-devel/distinfo
+5-82 files

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