Fix auditor feedback on audit fix #25

Job	Run time
Build debug Ethereum app ($NANOS_SDK, nanos)	53s
Build debug Ethereum app ($NANOS_SDK, nanos)	1m 5s
Build debug plugin ($NANOS_SDK, nanos)	42s
Build debug plugin ($NANOS_SDK, nanos)	42s
Clang Static Analyzer	1m 3s
Clang Static Analyzer	1m 3s
Build debug Ethereum app ($NANOX_SDK, nanox)	56s
Build debug Ethereum app ($NANOX_SDK, nanox)	56s
Build release plugin ($NANOS_SDK, nanos)	33s
Build release plugin ($NANOS_SDK, nanos)	33s
Build debug plugin ($NANOX_SDK, nanox)	32s
Build debug plugin ($NANOX_SDK, nanox)	32s
Build debug Ethereum app ($NANOSP_SDK, nanosp)	53s
Build debug Ethereum app ($NANOSP_SDK, nanosp)	53s
Build release plugin ($NANOX_SDK, nanox)	35s
Build release plugin ($NANOX_SDK, nanox)	35s
Build debug plugin ($NANOSP_SDK, nanosp)	45s
Build debug plugin ($NANOSP_SDK, nanosp)	45s
Build release plugin ($NANOSP_SDK, nanosp)	42s
Build release plugin ($NANOSP_SDK, nanosp)	42s
Build release plugin ($STAX_SDK, stax)	36s
Build release plugin ($STAX_SDK, stax)	36s
E2E Tests	0s
E2E Tests	0s
	16m 32s

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