[Github-comments] [geany] Improve spawn module error messages (#541)

[elextr]

Really libraries should not display errors, they should return error messages to the caller so the caller can decorate it with whatever more information they have.

So spawn_* would return the generic "Failed to find the executable" and the grep caller would combine to make a message like "Failed to execute 'grep': Failed to find executable".

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Reply to this email directly or view it on GitHub:
https://github.com/geany/geany/issues/541#issuecomment-146689159
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