Minor fixes in command line parser and options.

sit

@@ -17,7 +17,7 @@ SIT_USER_CONFIG_FILE=$HOME/.sit
 function usage() {
     echo "Usage: $0 [action] <sit package name>"
     echo "Valid actions:"
-    echo "    sit_sitinfo"
+    echo "    sitinfo"
     echo "    unpack"
     echo "    prepare"
     echo "    configure"
@@ -36,12 +36,9 @@ sit_classfile=""
 # sit action to be performed
 sit_action="all"
 
-while [ $1 != "" ] ; do
+while [ "$1" != "" ] ; do
     case $1 in
-    "sitinfo")
-	sit_sitinfo
-	exit 0
-    ;;
+    "sitinfo"| \
     "all"| \
     "unpack"| \
     "prepare"| \