[En-Nut-Discussion] Fixes for Nut/OS bugs #1477658 and #1477676 in nut cvs

[Matthias Ringwald]

Hi

I've fixed two bugs in vsscanf.c, vsscanf_P.c and getf.c which did  
result in crashes or incorrect behaviour
of string operations like fscanf, scanf. Particularly, scanf("%s",..)  
doesn't thrash the memory and
scanf("1 2", "%u %u", &a, &b) correctly set a to 1 and b to 2 (b was  
not set until now)

Fixed are in HEAD, see details in ChangeLog

Matthias