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b4f263bba8
Some invocations to external programs used exec.CombinedOutput, that combines stdout and strerr into a single byte array. This can be an issue if this output is parsed, as many programs print debug output or warnings to stderr and that data is unexpected by the parsers. This patch changes to using osutil.RunSplitOutput or osutil.RunCmd (that return separately stdout and stderr) when we need to parse stdout, and also in some other cases when printing separately both streams could be helpful. Fixes LP #1885597.