patch 9.0.1677: typo in syntax test input file

Problem:    Typo in syntax test input file.
Solution:   Fix the typo and the expected dump files. (THARAK HEGDE,
            closes #12635)

runtime/syntax/testdir/input/sh_07.sh

@@ -73,7 +73,7 @@ done ; echo
 #
 # Here is the heart of this script:
 #
-echo "Processing the following command line arguements: ${*:-none}"
+echo "Processing the following command line arguments: ${*:-none}"
 echo "Script:    for loop outside a function:\t\c"
 for Var
 do