Update mkhelp docstring

src/include/pretty.sh

@@ -139,16 +139,7 @@ mkhelp() {
     #
     # Echo out help text
     #
-    #     mkhelp line...
-    #
-    # Each argument as a separate line.  This makes it easy to
-    # print out bigger amount of text and still keep your script
-    # relatively clean:
-    #
-    #     mkhelp  "line1" \
-    #             "line2" \
-    #             "line3" \
-    #             "line4"
+    #     mkhelp [-e STATUS] [-E] arg...
     #
     # By default, will exit with status *FFOO_EXIT_OK*, you
     # can use `-e STATUS` to specify other number.