fix spelling in API docu, command reply, logging, descriptions

sections: ctrl, gb, gsm, vty

Change-Id: Iac211b5cd8504da36b699777b95a2448dd7c3e70
diff --git a/src/vty/logging_vty.c b/src/vty/logging_vty.c
index aabcaa7..7bb79b8 100644
--- a/src/vty/logging_vty.c
+++ b/src/vty/logging_vty.c
@@ -342,7 +342,7 @@
 
 gDEFUN(cfg_description, cfg_description_cmd,
 	"description .TEXT",
-	"Save human-readable decription of the object\n"
+	"Save human-readable description of the object\n"
 	"Text until the end of the line\n")
 {
 	char **dptr = vty->index_sub;