README.unittests: fixup for parallelized `pytest` example (#12242)

diff --git a/README.unittests.rst b/README.unittests.rst
index 66118f0c3fe5065c07ea7d3100c4978fd1ee84dc..07b935037813109ea0cc858ef1089e4238c88597 100644 (file)
--- a/README.unittests.rst
+++ b/README.unittests.rst
@@ -49,7 +49,7 @@ database options and test selection.
 
 A generic pytest run looks like::
 
-    pytest - n4
+    pytest -n4
 
 Above, the full test suite will run against SQLite, using four processes.
 If the "-n" flag is not used, the pytest-xdist is skipped and the tests will