Bug#20009543 SUPPORT-FILES/BUILD-TAGS TRANSITION TO GIT

Use 'git ls-files' to find source files for etags.

support-files/build-tags

 #! /bin/sh
 
 rm -f TAGS
-filter='\.cc$\|\.c$\|\.h$\|sql_yacc\.yy$'
+filter='\.cpp$\|\.cc$\|\.c$\|\.h$\|sql_yacc\.yy$\|\.hpp$\|\.ic$'
 
 list="find . -type f"
-bzr root >/dev/null 2>/dev/null && list="bzr ls --from-root -R --kind=file --versioned"
+git rev-parse >/dev/null 2>/dev/null && list="git ls-files"
 
 $list |grep $filter |while read f; 
 do