patch 8.2.1741: pathshorten() only supports using one character

Problem:    pathshorten() only supports using one character.
Solution:   Add an argument to control the length. (closes #7006)
diff --git a/src/version.c b/src/version.c
index 4295f2f..2258be9 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1741,
+/**/
     1740,
 /**/
     1739,