Backport PR #12187: DOC: Update INSTALL.rst (#12195)

meeseeksmachine · timhoffm · commit 0873dcbe7ebb · 2018-09-21T14:04:05.000+02:00
diff --git a/INSTALL.rst b/INSTALL.rst
@@ -17,8 +17,8 @@ Installing an official release
 Matplotlib and its dependencies are available as wheel packages for macOS,
 Windows and Linux distributions::
 
-  python -mpip install -U pip
-  python -mpip install -U matplotlib
+  python -m pip install -U pip
+  python -m pip install -U matplotlib
 
 .. note::
 
