patch 7.4.1506

Problem:    Job cannot read from a file.
Solution:   Implement reading from a file for Unix.

src/version.c

@@ -743,6 +743,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1506,
 /**/
     1505,
 /**/