Use VersionParsing.vparse in Git.version() (#19)

Author: carstenbauer

REQUIRE

@@ -1,4 +1,5 @@
 julia 0.6
 Compat 0.47.0
 BinDeps
+VersionParsing
 @osx Homebrew

src/Git.jl

@@ -6,6 +6,7 @@ module Git
 #
 using Compat
 using Base: shell_escape
+using VersionParsing
 export gitcmd # determined by deps/build.jl and saved in deps/deps.jl
 
 depsjl = joinpath(dirname(@__FILE__), "..", "deps", "deps.jl")
@@ -88,15 +89,7 @@ end
 
 Return the version of Git being used by the package.
 """
-function version()
-    vs = split(readchomp(`version`), ' ')[3]
-    ns = split(vs, '.')
-    if length(ns) > 3
-        VersionNumber(join(ns[1:3], '.'))
-    else
-        VersionNumber(join(ns, '.'))
-    end
-end
+version() = vparse(readchomp(`version`))
 
 """
     Git.modules(args; dir="")