devel/tig: update to 2.1.1

• Add upstream patch to "fix crash due to out-of-bounds array access" [1]
• Pet portlint since r383894 by formatting patches with makepatch target

Changes: http://jonas.nitro.dk/tig/NEWS.html#_tig_2_1_1
PR: 199382
Submitted by: lightside <lightside@gmx.com>
Approved by: maintainer timeout (3 weeks)
Obtained from: https://github.com/jonas/tig/commit/718c6e9 [1]