Merge branch '1.0.x'

CHANGES.rst

@@ -100,7 +100,8 @@ Unreleased
     requires upgrading to Werkzeug 0.15.5. :issue:`3249`
 -   ``send_file`` url quotes the ":" and "/" characters for more
     compatible UTF-8 filename support in some browsers. :issue:`3074`
--   Fixes for PEP451 import loaders and pytest 5.x.  :issue:`3275`
+-   Fixes for PEP451 import loaders and pytest 5.x. :issue:`3275`
+-   Show message about dotenv on stderr instead of stdout. :issue:`3285`
 
 
 Version 1.0.3

src/flask/cli.py

@@ -622,6 +622,7 @@ def load_dotenv(path=None):
                 " * Tip: There are .env or .flaskenv files present."
                 ' Do "pip install python-dotenv" to use them.',
                 fg="yellow",
+                err=True,
             )
 
         return False