27e45cf43b
This function is unused (SIGNAL_STRING is defined by default, and if it is not, procps does not compile -- for example, there is no "outbuf" in help_pr_sig()) but fix it anyway. There are two bugs: - it accepts non-hexadecimal characters (anything >= 0x30); - "(c - (c>0x57) ? 0x57 : 0x30)" is always equal to 0x57.