Fix a typo in an error message

6 jobs for fix-typo-in-error-message in 3 minutes and 32 seconds (queued for 1 second)
Status Job ID Name Coverage
  Build
passed #263008
build

00:03:31

passed #263013
build_android

00:02:06

passed #263009
build_clang_libcpp

00:03:21

passed #263012
build_clazy

00:03:19

passed #263011
build_mingw64_fedora

00:03:03

passed #263010
build_ubuntu_16_04

00:01:50