Revert "Logger: only log printable characters and newlines"

This reverts commit 2b1392af2f.
This seems to create issues shutting down, so I need to look into it
further.

src/rc/rc-logger.c

@@ -87,7 +87,6 @@ write_log(int logfd, const char *buffer, size_t bytes)
 		}
 
 		if (!in_escape) {
-			if (isprint((unsigned char) *p) || *p == '\n')
 			if (write(logfd, p++, 1) == -1)
 				eerror("write: %s", strerror(errno));
 			continue;