consistently use "ProcSignal" instead of "procsignal" in code comments

[Bharath Rupireddy]

Hi,

I see that "procsignal" and "ProcSignal" are being used in the code
comments which look inconsistent. IMO, "ProcSignal" is the right word
to use and let's be consistent across the code comments. Attaching a
tiny patch for that.

Thoughts?

Regards,
Bharath Rupireddy.

v1-0001-consistently-use-ProcSignal-instead-of-procsignal.patch
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