[orca] Change "Performs" to "Perform" and remove "." at the end

[Joanmarie Diggs <joanied src gnome org>]

commit 90a7d7217496bc48976e6b2a09439d854e5f791a
Author: scootergrisen <scootergrisen gmail com>
Date:   Wed Nov 4 15:23:26 2020 +0000

    Change "Performs" to "Perform" and remove "." at the end

 src/orca/cmdnames.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/orca/cmdnames.py b/src/orca/cmdnames.py
index 445015800..393605fe7 100644
--- a/src/orca/cmdnames.py
+++ b/src/orca/cmdnames.py
@@ -70,13 +70,13 @@ SAY_ALL_FLAT_REVIEW = _("Speak entire window using flat review")
 # then have information about their current context spoken and brailled to them.
 # For example, the information may include the name of the current pushbutton
 # with focus as well as its mnemonic.
-WHERE_AM_I_BASIC = _("Performs the basic Where Am I operation.")
+WHERE_AM_I_BASIC = _("Perform the basic Where Am I operation")
 
 # Translators: the "Where Am I" feature of Orca allows a user to press a key and
 # then have information about their current context spoken and brailled to them.
 # For example, the information may include the name of the current pushbutton
 # with focus as well as its mnemonic.
-WHERE_AM_I_DETAILED = _("Performs the detailed Where Am I operation.")
+WHERE_AM_I_DETAILED = _("Perform the detailed Where Am I operation")
 
 # Translators: This is the description of a dedicated command to speak the
 # current selection / highlighted object(s). For instance, in a text object,