- Fixed tests: oo_002, bug46268
- Fixed bug #50930 (Wrong date by php_date.c patch with ancient gcc/glibc
versions).
- Make sure faulty strings passed to DateTime::modify() notify the user.
- Revert fix for bug #50392 as it was fixed wrongly without a proper test case.
- Fixed a bug with the 'r' formatting function as the default buffer size that
was allocated only fit 4 digit years.
