fix typo in convert help text, update test

hgext/convert/__init__.py

@@ -344,7 +344,7 b' def convert(ui, src, dest=None, revmapfi'
     
     The 'include' directive causes a file, or all files under a
     directory, to be included in the destination repository, and the
-    exclussion of all other files and dirs not explicitely included.
+    exclusion of all other files and dirs not explicitely included.
     The 'exclude' directive causes files or directories to be omitted.
     The 'rename' directive renames a file or directory.  To rename from a
     subdirectory into the root of the repository, use '.' as the path to

tests/test-convert.out

@@ -3,6 +3,7 b' hg convert [OPTION]... SOURCE [DEST [MAP'
 Convert a foreign SCM repository to a Mercurial one.
 
     Accepted source formats:
+    - Mercurial
     - CVS
     - Darcs
     - git
@@ -19,8 +20,8 b' Convert a foreign SCM repository to a Me'
     basename of the source with '-hg' appended.  If the destination
     repository doesn't exist, it will be created.
 
-    If <revmapfile> isn't given, it will be put in a default location
-    (<dest>/.hg/shamap by default).  The <revmapfile> is a simple text
+    If <MAPFILE> isn't given, it will be put in a default location
+    (<dest>/.hg/shamap by default).  The <MAPFILE> is a simple text
     file that maps each source commit ID to the destination ID for
     that revision, like so:
     <source ID> <destination ID>
@@ -46,11 +47,12 b' Convert a foreign SCM repository to a Me'
       rename from/file to/file
     
     The 'include' directive causes a file, or all files under a
-    directory, to be included in the destination repository.  The
-    'exclude' directive causes files or directories to be omitted.
-    The 'rename' directive renames a file or directory.  To rename
-    from a subdirectory into the root of the repository, use '.' as
-    the path to rename to.
+    directory, to be included in the destination repository, and the
+    exclusion of all other files and dirs not explicitely included.
+    The 'exclude' directive causes files or directories to be omitted.
+    The 'rename' directive renames a file or directory.  To rename from a
+    subdirectory into the root of the repository, use '.' as the path to
+    rename to.
 
 options: