patch 8.1.2084: Amiga: cannot get the user name

Problem:    Amiga: cannot get the user name.
Solution:   Use getpwuid() if available. (Ola Söder, closes #4985)
diff --git a/src/version.c b/src/version.c
index 98ddcca..6c17851 100644
--- a/src/version.c
+++ b/src/version.c
@@ -758,6 +758,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2084,
+/**/
     2083,
 /**/
     2082,