Aligning colums

[Roy Smith]

I've got a bunch of text that looks like this:

         foo ("arg1", "xxxxxxxxxxxxxx", 1, "xxxx", 2)
         foo ("arg1", "xxxxxxxxx", 1, "xxx", 2)
         foo ("arg1", "xxxxxxxxxxx", 1, "xxxxxxxx", 2)
         foo ("arg1", "xxxxxxxx", 1, "xxxxxx", 2)
         foo ("arg1", "xxxxxxxxxx", 1, "xxxxxxx", 2)

I want to get the arguments lined up so it looks like:

         foo ("arg1", "xxxxxxxxxxxxxx",  1, "xxxx",       2)
         foo ("arg1", "xxxxxxxxx",       1, "xxx",        2)
         foo ("arg1", "xxxxxxxxxxx",     1, "xxxxxxxx",   2)
         foo ("arg1", "xxxxxxxx",        1, "xxxxxx",     2)
         foo ("arg1", "xxxxxxxxxx",      1, "xxxxxxx",    2)

What's the best way to do that?  I suspect M-X align is what I want, I
can't make heads or tails out of the on-line help.

Note, the above text looks like C code, but I seem to run into things
like this is various languages, not just C, so I'm looking for a
general solution.