patch 9.0.1886: Various Typos

Problem:  Various Typos
Solution: Fix Typos

This is a collection of typo related commits.

closes: #12753
closes: #13016

Co-authored-by: Adri Verhoef <a3@a3.xs4all.nl>
Co-authored-by: zeertzjq <zeertzjq@outlook.com>
Co-authored-by: Viktor Szépe <viktor@szepe.net>
Co-authored-by: nuid64 <lvkuzvesov@proton.me>
Co-authored-by: Meng Xiangzhuo <aumo@foxmail.com>
Co-authored-by: Dominique Pellé <dominique.pelle@gmail.com>

Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/gui_gtk_x11.c b/src/gui_gtk_x11.c
index 3f0cf8c..3fd6f3a 100644
--- a/src/gui_gtk_x11.c
+++ b/src/gui_gtk_x11.c
@@ -4002,8 +4002,8 @@
     }
 
     // Real windows can get focus ... GtkPlug, being a mere container can't,
-    // only its widgets.  Arguably, this could be common code and we not use
-    // the window focus at all, but let's be safe.
+    // only its widgets.  Arguably, this could be common code and we do not
+    // use the window focus at all, but let's be safe.
     if (gtk_socket_id == 0)
     {
 	g_signal_connect(G_OBJECT(gui.mainwin), "focus-out-event",