File HepMC-disable-doxygen-html-timestamp.patch of Package HepMC

Index: HepMC3-3.2.5/doc/doxygen/Doxyfile.in
===================================================================
--- HepMC3-3.2.5.orig/doc/doxygen/Doxyfile.in
+++ HepMC3-3.2.5/doc/doxygen/Doxyfile.in
@@ -978,7 +978,7 @@ HTML_COLORSTYLE_GAMMA  = 80
 # page will contain the date and time when the page was generated. Setting
 # this to NO can help when comparing the output of multiple runs.
 
-HTML_TIMESTAMP         = YES
+HTML_TIMESTAMP         = NO
 
 # If the HTML_DYNAMIC_SECTIONS tag is set to YES then the generated HTML
 # documentation will contain sections that can be hidden and shown after the