upgrade to doxygen 1.2.15

doxygen/doxygen.spec

@@ -32,8 +32,8 @@ Packager:     The OpenPKG Project
 Distribution: OpenPKG [EXP]
 Group:        Text
 License:      GPL
-Version:      1.2.14
-Release:      20020222
+Version:      1.2.15
+Release:      20020402
 
 #   list of sources
 Source0:      ftp://ftp.stack.nl/pub/users/dimitri/doxygen-%{version}.src.tar.gz