Add -m for commit and deprecate -t

Index: hg/doc/hg.1.txt
===================================================================

doc/hg.1.txt

@@ -100,7 +100,7 b' clone [-U] <source> [dest]::'
     options:
     -U, --noupdate   do not update the new working directory
 
-commit [-A -t -l <file> -t <text> -u <user> -d <datecode>] [files...]::
+commit [-A -t -l <file> -m <text> -u <user> -d <datecode>] [files...]::
     Commit changes to the given files into the repository.
     
     If a list of files is omitted, all changes reported by "hg status"
@@ -112,7 +112,7 b' commit [-A -t -l <file> -t <text> -u <us'
     Options:
 
     -A, --addremove       run addremove during commit
-    -t, --text <text>     use <text> as commit message
+    -m, --text <text>     use <text> as commit message
     -l, --logfile <file>  show the commit message for the given file
     -d, --date <datecode> record datecode as commit date
     -u, --user <user>     record user as commiter

mercurial/commands.py

@@ -1099,7 +1099,8 b' table = {'
     "^commit|ci":
         (commit,
          [('A', 'addremove', None, 'run add/remove during commit'),
-          ('t', 'text', "", 'commit text'),
+          ('m', 'text', "", 'commit message'),
+          ('t', 'text', "", 'commit message (deprecated)'),
           ('l', 'logfile', "", 'commit text file'),
           ('d', 'date', "", 'date code'),
           ('u', 'user', "", 'user')],