fix DYLIB version inconsistencies and test failures after #6188.

test/versioning.sh

@@ -143,6 +143,8 @@ case "$ref_minor" in
 esac
 
 ref="${major}.${minor}.0
+${major}.${minor}.0
+${major}.${minor}.0
 ${major}.${minor}.0"
 
 if [ "$ref" = "$dylib_compat" ]; then
@@ -165,6 +167,8 @@ case "$ref_minor" in
 esac
 
 ref="${major}.${minor}.0
+${major}.${minor}.0
+${major}.${minor}.0
 ${major}.${minor}.0"
 
 if [ "$ref" = "$dylib_cur" ]; then