config: show we write a spurious duplicated section header
config: show we write a spurious duplicated section header

We should notice that we are in the correct section to add. This is a
cosmetic bug, since replacing any of these settings does work.

leoyanggit/libgit2,joshtriplett/libgit2,joshtriplett/libgit2,Corillian/libgit2,leoyanggit/libgit2,joshtriplett/libgit2,leoyanggit/libgit2,stewid/libgit2,leoyanggit/libgit2,joshtriplett/libgit2,stewid/libgit2,Corillian/libgit2,stewid/libgit2,stewid/libgit2,Corillian/libgit2,leoyanggit/libgit2,Corillian/libgit2,joshtriplett/libgit2,stewid/libgit2,Corillian/libgit2,joshtriplett/libgit2,leoyanggit/libgit2,stewid/libgit2,Corillian/libgit2