Fix GH-14553: Bug in phpdbg8.3 (also 8.1 and 8.2) echo output - trimmed at NULL byte (?)

This broke in 6318040df2b6c6f4824b99fd27369179d29ee93b when phpdbg
stopped using its custom print

Fix GH-14553: Bug in phpdbg8.3 (also 8.1 and 8.2) echo output - trimmed at NULL byte (?)

This broke in 6318040df2b6c6f4824b99fd27369179d29ee93b when phpdbg
stopped using its custom printing routines. By relying on standard
printing routines, the embedded NUL bytes are causing the strings to be
cut off, even when using %.*s. Solve this by going straight to the
output routine, which is what the printf routine would've done anyway.

Closes GH-14822.

show more ...