This patch adds missing newlines, trims multiple redundant final
newlines into a single one, and trims redundant leading newlines.

According to POSIX, a line is a sequence of zero or more non-' <newline>'
characters plus a terminating '<newline>' character. [1] Files should
normally have at least one final newline character.

C89 [2] and later standards [3] mention a final newline:
"A source file that is not empty shall end in a new-line character,
which shall not be immediately preceded by a backslash character."

Although it is not mandatory for all files to have a final newline
fixed, a more consistent and homogeneous approach brings less of commit
differences issues and a better development experience in certain text
editors and IDEs.

[1] http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap03.html#tag_03_206
[2] https://port70.net/~nsz/c/c89/c89-draft.html#2.1.1.2
[3] https://port70.net/~nsz/c/c99/n1256.html#5.1.1.2

* PHP-7.1:
  Happy new year (Update copyright to 2018)

* Switch default REPORT_LEVEL to 1 to cut down on the noise
* Make initialization of 'C' variable always required
* Don't require init of lLdb variable if ! is used
* Don't throw error about missing init of not detected parameters
  (This was a regression in the last changeset)
* Support method_parameters and throw variations

* Allow / on everything but lLdb (on which it will work, but makes
  no sense).
* For ! on lLdb add additional zend_bool* parameter.
* For optional s and p only require one of the variables to be
  initialized. The length is usually not initialized.

Also fix deprecation errors and move from preg_replace
-> preg_replace_callback.