Sync leading and final newlines in source code files

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

Author: petk

.appveyor.yml

@@ -1,4 +1,3 @@
-
 version: "{branch}.build.{build}"
 
 image: Visual Studio 2017
@@ -50,4 +49,3 @@ build_script:
 
 test_script:
         - appveyor\test.bat
-

Makefile.frag

@@ -1,4 +1,3 @@
-
 #
 # Zend
 #

Makefile.gcov

@@ -1,4 +1,3 @@
-
 #
 # LCOV
 #

README.EXT_SKEL

@@ -41,4 +41,3 @@ SOURCE AND HEADER FILE NAME
 OTHER OPTIONS
 
   Run php ext_skel.php --help to see the available options.
-

README.RELEASE_PROCESS

@@ -370,4 +370,3 @@ New Release Manager Checklist
 5. Request moderation access to announce@php.net and primary-qa-tester@lists.php.net lists, to
    be able to moderate your release announcements. All the announcements should be sent from
    the @php.net alias.
-

README.SELF-CONTAINED-EXTENSIONS

@@ -164,4 +164,3 @@ PECL SITE CONFORMITY
 
     This macros has to be used within your foo_module_entry to indicate the
     extension version.
-

README.WIN32-BUILD-SYSTEM

@@ -3,4 +3,3 @@ The Win32 Build System.
 See https://wiki.php.net/internals/windows/stepbystepbuild_sdk_2
 
 vim:tw=78:sw=1:ts=1:et
-

README.md

@@ -1,5 +1,3 @@
-
 AC_DEFUN([AM_SET_LIBTOOL_VARIABLE],[
   LIBTOOL='$(SHELL) $(top_builddir)/libtool $1'
 ])
-

TSRM/acinclude.m4

@@ -2,4 +2,3 @@
 
 ADD_SOURCES("TSRM", "TSRM.c tsrm_strtok_r.c tsrm_win32.c");
 ADD_FLAG("CFLAGS_BD_TSRM", "/D ZEND_ENABLE_STATIC_TSRMLS_CACHE=1");
-