Fix spelling of unprecise -> imprecise
The spelling of unprecise is the archaic spelling of unprecise, use
the more modern spelling.
@@ -2340,7 +2340,7 @@ static void usage(void)
" Note: RDTSC is used by default.\n"
"--quick: reduces number of test iterations by x10\n"
" (less precise but quicker)\n"
- "--smoke: very quick, unprecise and without print out\n"
+ "--smoke: very quick, imprecise and without print out\n"
" (for validation only)\n"
"--job-size: size of the cipher & MAC job in bytes. It can be:\n"
" - single value: test single size\n"
