examples: general: extract function demonstrating index walking
examples: general: extract function demonstrating index walking

Corillian/libgit2,Corillian/libgit2,stewid/libgit2,Corillian/libgit2,stewid/libgit2,stewid/libgit2,stewid/libgit2,stewid/libgit2,Corillian/libgit2,Corillian/libgit2,stewid/libgit2,Corillian/libgit2