Users who have ``git config diff.mnemonicprefix=true`` will not have modified functions listed in their ChangeLog because diffHeaderFormat() is looking for headers of the form: ``return qr/^diff --git a\/.+ b\/(.+)$/ if isGit();``, but mnemonicprefix will change "a" and "b" to 'i', 'w', 'c', or 'o'. I think it's better to fix by changing the config for the diff command via option ``-c diff.mnemonicprefix=false``, but am open to other suggestions (e.g. changing the RegEx).
Created attachment 261300 [details] Patch to fix by adding ``-c diff.mnemonicprefix=false`` to invocation. This patch fixes the bug by ensuring that prepare-ChangeLog sets the expected configuration for ``git diff``.