Fix message nit pointed out by
@@ -585,7 +585,7 @@ class InstallRequirement(object):
if "requires" not in build_system:
raise InstallationError(
error_template.format(package=self, reason=(
- "it has a 'build-system' table but not the "
+ "it has a 'build-system' table but not "
"'build-system.requires' which is mandatory in the table"
))
)
