Fix missing space

diff --git a/alembic/script.py b/alembic/script.py
index d019480e2d20d70083ab0359a07203de980cfc14..8f3d11f0c0e8d8670e0ff5104a9a84511727f060 100644 (file)
--- a/alembic/script.py
+++ b/alembic/script.py
@@ -247,7 +247,7 @@ class ScriptDirectory(object):
         current_heads = self.get_heads()
         if len(current_heads) > 1:
             raise util.CommandError('Only a single head is supported. The '
-                'script directory has multiple heads (due to branching), which'
+                'script directory has multiple heads (due to branching), which '
                 'must be resolved by manually editing the revision files to '
                 'form a linear sequence. Run `alembic branches` to see the '
                 'divergence(s).')