Path: use the actual values instead of absolute values when calculati…

…ng distance

src/Mod/Path/PathScripts/PathUtils.py

@@ -526,7 +526,7 @@ def sqdist(a, b):
         """ square Euclidean distance """
         d = 0
         for k in keys:
-            d += (abs(a[k]) - abs(b[k])) ** 2 
+            d += (a[k] - b[k]) ** 2 
 
         return d