typo fixes

Signed-off-by: Maninder Singh <maninder1.s@samsung.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/shell/hush.c b/shell/hush.c
index f2c0a70..96c739f 100644
--- a/shell/hush.c
+++ b/shell/hush.c
@@ -442,7 +442,7 @@
 	MAYBE_ASSIGNMENT      = 0,
 	DEFINITELY_ASSIGNMENT = 1,
 	NOT_ASSIGNMENT        = 2,
-	/* Not an assigment, but next word may be: "if v=xyz cmd;" */
+	/* Not an assignment, but next word may be: "if v=xyz cmd;" */
 	WORD_IS_KEYWORD       = 3,
 };
 /* Used for initialization: o_string foo = NULL_O_STRING; */