bump git version to 1.8.5.2 to match current Apple

Apple current Xcode (pre WWDC) includes git-1.8.5.2; To avoid incompatibility issues, I tested a simple version-bump to a matching version.  Builds fine as arch-ppc853x for x09+ series PPC.

I chose to match Apple for both personal gain and for "there is a large company that redistributes a specific version that a number of users would use".

Also, a spelling typo was fixed; kick me if you want that split out