Sync leading and final newlines in *.phpt sections

This patch adds missing newlines, trims multiple redundant final
newlines into a single one, and trims redundant leading newlines in all
*.phpt sections.

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

tests/005.phpt

@@ -287,4 +287,3 @@ four rows again
 5	
 ---
 end of test
-

tests/006.phpt

@@ -298,4 +298,3 @@ prepare and exec select
 10	
 ---
 end of test
-

tests/bug46247.phpt

@@ -24,7 +24,6 @@ ibase_set_event_handler(NULL, 'foo', 1);
 
 ?>
 --EXPECTF--
-
 Warning: Wrong parameter count for ibase_set_event_handler() in %s on line %d
 
 Warning: ibase_set_event_handler(): supplied argument is not a valid InterBase link resource in %s on line %d