Bump internal versioning to 1.4.0beta56
diff --git a/scripts/makefile.openbsd b/scripts/makefile.openbsd
index 3b68a18..4e18a81 100644
--- a/scripts/makefile.openbsd
+++ b/scripts/makefile.openbsd
@@ -8,7 +8,7 @@
 MANDIR= ${PREFIX}/man/cat
 
 SHLIB_MAJOR=	0
-SHLIB_MINOR=	1.4.0beta55
+SHLIB_MINOR=	1.4.0beta56
 
 LIB=	png
 SRCS=	png.c pngerror.c pnggccrd.c pngget.c pngmem.c pngpread.c \