Test for text formatting.

Results of test68:

STARTTEST
:so small.vim
/^{/+1
:set noai tw=2 fo=t
gRa b
ENDTEST

{
    

}

STARTTEST
/^{/+1
:set ai tw=2 fo=tw
gqgqjjllab
ENDTEST

{
a  b  

a    
}

STARTTEST
/^{/+1
:set tw=3 fo=t
gqgqo
a 
ENDTEST

{
a 
}

STARTTEST
/^{/+1
:set tw=2 fo=tcq1 comments=:#
gqgqjgqgqo
a b
#a b
ENDTEST

{
a b
#a b
}

STARTTEST
/^{/+2
:set tw& fo=a
I^^
ENDTEST

{
   1aa
   2bb
}

STARTTEST
:g/^STARTTEST/.,/^ENDTEST/d
:1;/^Results/,$wq! test.out
ENDTEST