Doxygen: Add new version (#2561)

var/spack/repos/builtin/packages/doxygen/package.py

@@ -35,6 +35,7 @@ class Doxygen(Package):
     homepage = "http://www.stack.nl/~dimitri/doxygen/"
     url      = "http://ftp.stack.nl/pub/users/dimitri/doxygen-1.8.10.src.tar.gz"
 
+    version('1.8.12', '08e0f7850c4d22cb5188da226b209a96')
     version('1.8.11', 'f4697a444feaed739cfa2f0644abc19b')
     version('1.8.10', '79767ccd986f12a0f949015efb5f058f')