Minor logging changes + more reporting

This:
 * Stops warning about "invalid dialog type" for sceUtilityMsgDialogStatus() etc. - this happens on real firmware.
 * Strips the newline off stdio/stderr logged messages.
 * Adds _REPORT to a bunch of thread-related errors.
 * Changes some logging to fit better to 300 columns.
 * Stops logging sceKernelExitThread() as an error, it's not one.

-[Unknown]