update help

urchin

@@ -332,19 +332,33 @@ On each run,
 2. If the test file has a shebang line of "#!/bin/sh" or no shebang
    line at all, the test script is also executed in that shell.
 
--s <shell>  Specify which shells Urchin should test in rather than using the
-            default list.
--n          Disable the cycling of shells; Urchin will execute test files
-            directly, and it will not manipulate the TEST_SHELL environment
-            variable.
--e          Stop running if any single test fails. This is helpful if you want
-            to use Urchin to run things other than tests, such as a set of
-            configuration scripts.
--f          Force running even if the test directory's name does not
-            contain the word "test".
--t          Format output in Test Anything Protocol (TAP)
--h, --help  This help.
--v          Display the version number.
+The following flags affect how this multiple-shell testing is handled.
+
+-s, --shell <shell>      Tell Urchin to use a different list of shells.
+                         (You can pass this flag multiple times.)
+
+-n, --disable-cycling    Disable the cycling of shells; Urchin will execute
+                         test files directly, and it will not manipulate the
+                         TEST_SHELL environment variable.
+
+Urchin can run any Unix-style programs for any purpose, not just for testing.
+If you are using Urchin for automatally running periodic jobs or for running
+lots of configuration files, you may find these options helpful.
+
+-e, --exit-on-fail       Stop running if any single test fails.
+-f, --force              Force running even if the test directory's name
+                         does not contain the word "test".
+
+These options affect how results are formatted.
+
+-t, --tap                Format output in Test Anything Protocol (TAP)
+-v, --verbose            Print stdout from all tests, not just failed tests.
+                         XXX Not yet implemented
+
+The remaining flags provide information about urchin.
+
+-h, --help               Display this help.
+--version                Display the version number.
 
 Go to https://github.com/tlevine/urchin for documentation on writing tests.
 
@@ -408,7 +422,7 @@ do
         -t) tap_format=true;;
         -h|--help) urchin_help
           exit 0;;
-        -v) echo "$VERSION"
+        --version) echo "$VERSION"
             urchin_exit;;
         -*) urchin_help >&2
             exit 1;;