The issue can be resolved by doing something like the following change in src/nlmake.c:

--- nlmake-1.13.1.2+030617.orig/src/nlmake.c
+++ nlmake-1.13.1.2+030617/src/nlmake.c
@@ -173,7 +173,7 @@ main (int ParmsCtr, char *Parms[])
   char textline[512];
   short cntr = 0, cntr2;


-  printf ("%s v%i.%i.%i%i (%s) \n", ProgName, MajVer, MinVer, Rev, SubRev,
+  printf ("%s v%i.%i.%i.%i (%s) \n", ProgName, MajVer, MinVer, Rev, SubRev,
           OSType);