When a single word exceeds the visible message-window width the
wrap loop found no whitespace, called outmore(cw), and continued
without advancing str -- and on the next iteration curx==0 took
it straight back to the same spot. Force-break the word at the
column boundary when we are already at the start of a line.
Also reset the wrapping static flag to 0 after the NHW_BASE wrap
cleanup runs, so the cleanup fires once after a wrap instead of
on every subsequent putstr.
Ingo Paschke
459113a48e