Fix typo mentioned in GitHub issue #819.

diff --git a/tests/TESTrun b/tests/TESTrun
index a532acca1084fed54936d2f8b44898d6f97ffd4e..5551875783dd9aaffa4b2db53a07e19f6df826a1 100755 (executable)
--- a/tests/TESTrun
+++ b/tests/TESTrun
@@ -7,7 +7,7 @@ use POSIX qw( WEXITSTATUS WIFEXITED);
 use Cwd qw(abs_path getcwd);
 use File::Path qw(mkpath);   # mkpath works with ancient perl, as well as newer perl
 
-eval 'use YAML qw(LoadFile); 1' || die "TESTrun needs YAML.pm. apt install libyaml-perl/yum install per-YAML/cpanm YAML";
+eval 'use YAML qw(LoadFile); 1' || die "TESTrun needs YAML.pm. apt install libyaml-perl/yum install perl-YAML/cpanm YAML";
 
 # these are created in the directory where we are run, which might be
 # a build directory.