Apply suggestions from code review

Co-authored-by: Adam Turner <[email protected]>

Author: zooba

_msbuild.py

@@ -230,7 +230,7 @@ def get_commands():
 def _make_xyzw_version(v, sep="."):
     """Calculate a suitable x.y.z.w version from our user-friendly version.
 
-    For MSIX in the Store, the fourth field must be 0.
+    For MSIX in the Microsoft Store, the fourth field must be 0.
 
     For MSI, the first field must be <256.
 
@@ -245,7 +245,7 @@ def _make_xyzw_version(v, sep="."):
     if v.micro:
         print("[WARNING]Overriding calculated version field 3 with", v)
         micro = v.micro
-    return "{0}{4}{1}{4}{2}{4}{3}".format(v.major, v.minor, micro, 0, sep)
+    return sep.join(map(str, (v.major, v.minor, micro, 0)))
 
 
 def _patch_appx_identity(source, dest, **new):