restart coprocess in raw mode

Restarting a crashing git process could result in filename encoding issues
when not in a unicode locale, as the restarted processes's handles were not
read in raw mode.

Since rawMode is always used when starting a coprocess, didn't bother
to parameterise it and just always enable it for simplicity.

This commit was sponsored by Jake Vosloo on Patreon.

Git/CatFile.hs

@@ -51,7 +51,7 @@ catFileStart' restartable repo = CatFileHandle
 	<$> startp "--batch"
 	<*> startp "--batch-check=%(objectname) %(objecttype) %(objectsize)"
   where
-	startp p = CoProcess.rawMode =<< gitCoProcessStart restartable
+	startp p = gitCoProcessStart restartable
 		[ Param "cat-file"
 		, Param p
 		] repo