Various bugs identified in LibreOffice are listed at “https://bugs.freedesktop.org” with specific id’s. I want to map those bugs to specific commits, so that i can know which files were changed because of that bug. Usually, developers specify those bug id’s during the comment of a commit, which is not specified in case of LibreOffice. So, can you suggest me any other way by which i can map bugs to commits.
It might be good to explain what the goal is: what is it you’re trying to do more broadly?
On the question as stated, it would seem to me easier to work the other direction: you can get a list of commits including an fdo# bug number (that’s for the core package), as the bug – like fdo#79353 for example – is identified in the commit message - you’ll see in that case it’s also recorded in the last message in the comment thread on the bug.
You might know all that already, of course. 
thanks David…