Merge pull request #30643 from dhuseby/snaps_2015-12-18-33916307

Fixes #30521 and #30627 by adding new snapshots
edunham uploaded the snapshots.

src/snapshots.txt

 S 2015-12-18 3391630
+  bitrig-x86_64 6476e1562df02389b55553b4c88b1f4fd121cd40
+  freebsd-i386 7e624c50494402e1feb14c743d659fbd71b448f5
+  freebsd-x86_64 91724d4e655807a2a2e940ac50992ebeaac16ea9
   linux-i386 a09c4a4036151d0cb28e265101669731600e01f2
   linux-x86_64 97e2a5eb8904962df8596e95d6e5d9b574d73bf4
   macos-i386 ca52d2d3ba6497ed007705ee3401cf7efc136ca1