patch 8.2.0942: expanding to local dir after homedir keeps "~/"

Problem:    Expanding to local dir after homedir keeps "~/".
Solution:   Adjust modify_fname(). (Christian Brabandt, closes #6205,
            closes #5979)

src/version.c

@@ -754,6 +754,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    942,
 /**/
     941,
 /**/