Use histogram diff algorithm.

fd43649b · Gea-Suan Lin · f545108e · fd43649b
Commit fd43649b authored Dec 10, 2017 by Gea-Suan Lin
--- a/.gitconfig
+++ b/.gitconfig
@@ -12,6 +12,8 @@
    ui = auto
 [core]
    preloadindex = yes
+[diff]
+    algorithm = histogram
 [merge]
    tool = vimdiff
 [pull]