Tests: trailing space removed.

lib/Test/Nginx.pm

diff --git a/lib/Test/Nginx.pm b/lib/Test/Nginx.pm
index 0a68406..fb70eda 100644
--- a/lib/Test/Nginx.pm
+++ b/lib/Test/Nginx.pm
@@ -481,7 +481,7 @@
 		my @globals = $self->{_test_globals} ?
 			() : ('-g', "pid $testdir/nginx.pid; "
 			. "error_log $testdir/error.log debug;");
-		my @error = $self->has_version('1.19.5') ? 
+		my @error = $self->has_version('1.19.5') ?
 			('-e', 'error.log') : ();
 		system($NGINX, '-p', $testdir, '-c', "nginx.conf",
 			'-s', 'reload', @error, @globals) == 0