When indenting sh script in "Shell-script" mode, I have this very strange behaviour with the funtion named 'main'
  It indent on more time the line in the function AND the line after the function!

example:---------------------------1: main( ) {
2:    echo "usage: $1"3:    exit 0
4:    }
5:    
6:    main $*
---------------------------(for lines 2 and 3 I have one Tab, for lines 4 to 6, I have 4 spaces)

It does not do the same with an other function name of 4 letters.
--------------------------- 
 #!/bin/sh

toto( ) {
    echo "usage: $1"
    exit 0
}

toto $*
--------------------------- And if I add a parameter, the behaviour changes back to normal...
---------------------------#!/bin/sh

main( nil ) {
    echo "usage: $1"
    exit 0
}

main $*
---------------------------  
I looked in the file: http://repo.or.cz/w/emacs.git/blob/HEAD:/lisp/progmodes/sh-script.elBut could not find a specific processing of the 'main' function.
Longue Vie au Gnou!