tools/mkeficapsule.c: fix DEBUG build

Fix a missing comma sign (,) from a printf(), that is only
reachable if DEBUG is defined, in which case the build fails with:

    tools/mkeficapsule.c:266:36: error: expected β€˜)’ before β€˜bin’
      266 |  printf("\tbin: %s\n\ttype: %pUl\n" bin, guid);
          |                                    ^~~~
          |                                    )

Signed-off-by: Klaus Heinrich Kiwi <klaus@linux.vnet.ibm.com>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
diff --git a/tools/mkeficapsule.c b/tools/mkeficapsule.c
index 1624949..1613e74 100644
--- a/tools/mkeficapsule.c
+++ b/tools/mkeficapsule.c
@@ -263,7 +263,7 @@
 
 #ifdef DEBUG
 	printf("For output: %s\n", path);
-	printf("\tbin: %s\n\ttype: %pUl\n" bin, guid);
+	printf("\tbin: %s\n\ttype: %pUl\n", bin, guid);
 	printf("\tindex: %ld\n\tinstance: %ld\n", index, instance);
 #endif