Fix usage of (s) instead of correct plural and singular. (#50)

Author: tobiasraabe

docs/changes.rst

@@ -6,6 +6,13 @@ chronological order. Releases follow `semantic versioning <https://semver.org/>`
 all releases are available on `Anaconda.org <https://anaconda.org/pytask/pytask>`_.
 
 
+0.0.11 - 2020-xx-xx
+-------------------
+
+- :gh:`47` reduce node names in error messages while resolving dependencies.
+- :gh:`50` implements correct usage of singular and plural in collection logs.
+
+
 0.0.10 - 2020-11-18
 -------------------
 
@@ -14,8 +21,7 @@ all releases are available on `Anaconda.org <https://anaconda.org/pytask/pytask>
 - :gh:`42` ensures that lists with one element and dictionaries with only a zero key as
   input for ``@pytask.mark.depends_on`` and ``@pytask.mark.produces`` are preserved as a
   dictionary inside the function.
-- :gh:`43` releases v0.0.10
-- :gh:`47` reduce node names in error messages while resolving dependencies.
+- :gh:`43` releases v0.0.10.
 
 
 0.0.9 - 2020-10-28

src/_pytask/collect.py

@@ -218,11 +218,11 @@ def pytask_collect_log(session, reports, tasks):
     session.collection_end = time.time()
     tm_width = session.config["terminal_width"]
 
-    message = f"Collected {len(tasks)} task(s)."
+    message = f"Collected {len(tasks)} task{'' if len(tasks) == 1 else 's'}."
 
     n_deselected = len(session.deselected)
     if n_deselected:
-        message += f" Deselected {n_deselected} task(s)."
+        message += f" Deselected {n_deselected} task{'' if n_deselected == 1 else 's'}."
     click.echo(message)
 
     failed_reports = [i for i in reports if not i.successful]