If stg import fails still compile script is run

[kvalo]

Compile script should not be run if stg import fails:

Retrieving patches (1/1)
      [2/3] ath10k: use size_t for len variables                   2017-02-02 Amadeusz Sła New
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Apply 1 patches to the pending branch? [Apply/Skip/aBort] a
Failed to apply patch: ['stg', 'import', '--mbox', '--sign'] failed: 2
error: patch failed: drivers/net/wireless/ath/ath10k/debug.c:726
error: drivers/net/wireless/ath/ath10k/debug.c: patch does not apply
stg import: Diff does not apply cleanly

Build successful                                                 
Changes requested/Rejected/New/Deferred/Superseded/aWaiting upstream/not aPplicable/rFc/aBort?