patch 8.2.1507: using malloc() directly

Problem:    Using malloc() directly.
Solution:   Use ALLOC_ONE().  Remove superfluous typecast.  (Hussam al-Homsi,
            closes #6768)
diff --git a/src/version.c b/src/version.c
index 575f343..bb1624f 100644
--- a/src/version.c
+++ b/src/version.c
@@ -755,6 +755,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1507,
+/**/
     1506,
 /**/
     1505,