PATCH: Updated patch for strace to work with LinuxThreads programs

[Ganesan Rajagopal]

Patch attached. I've moved checking for standard signals (SIGSTOP, SIGCONT)
etc to the beginning of sigishandled() since this catches the common case
and is therefore more efficient.

Patch Summary:
/proc/pid/stat does not reflect the status of real-time signals, so strace
exits abruptly when tracing LinuxThreads programs. This patch makes strace
to read /proc/pid/status instead.

Ganesan

-- 
R. Ganesan (rganesan at novell.com)       | Ph: 91-80-5731856 Ext: 2149
Novell India Development Center.       | #include <std_disclaimer.h>

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