Regex tweak to restore support for older versions of IAR for ARM #84
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Older versions of IAR for ARM (We currently use 7.20.2) report warnings in a different format.
e.g.
"d:\jenkins\workspace\Nightly\src\flash\flashdrv.c",861 Warning[Pe177]: function "FlashErase" was declared but never referenced
These could be identified by the parser prior to commit c234b94.
I've tweaked the regex to restore functionality with these older versions, without breaking the current matching behaviour.
Please consider for a merge into master.