Add cabal.project.local~ to Haskell.gitignore (#2479)

RyanGlScott · shiftkey · commit d9679b982edc · 2017-11-29T12:04:15.000+11:00
diff --git a/Haskell.gitignore b/Haskell.gitignore
@@ -17,5 +17,6 @@ cabal.sandbox.config
 *.eventlog
 .stack-work/
 cabal.project.local
+cabal.project.local~
 .HTF/
 .ghc.environment.*
