fix a typo in usage output

26 jobs for fix-typo in 7 minutes and 57 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Precheck
passed precheck:debian:sid:amd64 #58240
amd64 docker linux

00:00:16

 
  Build
passed build:centos:centos6:amd64 #58241
amd64 docker linux

00:02:46

passed build:centos:centos7:amd64 #58242
amd64 docker linux

00:02:34

passed build:clang:debian:stretch:amd64 #58243
amd64 docker linux

00:01:47

passed build:clang:debian:stretch:i386 #58247
i386 docker linux

00:01:52

passed build:debian:jessie:amd64 #58244
amd64 docker linux

00:02:06

passed build:debian:sid:amd64 #58246
amd64 docker linux

00:02:38

passed build:debian:sid:i386 #58248
i386 docker linux

00:01:47

passed build:debian:stretch:amd64 #58245
amd64 docker linux

00:01:45

passed pkcs11:build:debian:sid:amd64 #58249
amd64 docker linux

00:02:25

 
  Test
passed install:debian:sid:amd64 #58263
amd64 docker linux

00:01:57

passed pkcs11:systemtest:debian:sid:amd64 #58265
amd64 docker linux

00:04:47

passed pkcs11:unittest:debian:sid:amd64 #58264
amd64 docker linux

00:00:43

passed systemtest:centos:centos6:amd64 #58257
amd64 docker linux

00:04:45

passed systemtest:centos:centos7:amd64 #58258
amd64 docker linux

00:04:47

passed systemtest:debian:jessie:amd64 #58259
amd64 docker linux

00:04:36

passed systemtest:debian:sid:amd64 #58261
amd64 docker linux

00:04:37

passed systemtest:debian:sid:i386 #58262
i386 docker linux

00:04:54

passed systemtest:debian:stretch:amd64 #58260
amd64 docker linux

00:04:49

passed unittest:centos:centos6:amd64 #58250
amd64 docker linux

00:00:54

passed unittest:centos:centos7:amd64 #58251
amd64 docker linux

00:00:58

passed unittest:clang:debian:stretch:amd64 #58255
amd64 docker linux

00:00:50

passed unittest:debian:jessie:amd64 #58252
amd64 docker linux

00:00:55

passed unittest:debian:sid:amd64 #58254
amd64 docker linux

00:00:50

passed unittest:debian:sid:i386 #58256
i386 docker linux

00:00:51

passed unittest:debian:stretch:amd64 #58253
amd64 docker linux

00:00:47