ash: in dotrap(), do not clear gotsig[] for SIGINT if there is no handler

 for it, otherwise raise interrupt gets confused later.
 The rest are readability fixes.

function                                             old     new   delta                                                                                                       
evaltreenr                                           817     818      +1                                                                                                       
evaltree                                             817     818      +1                                                                                                       
evalstring                                            88      89      +1                                                                                                       
cmdloop                                              420     419      -1                                                                                                       
evalskip                                               4       1      -3                                                                                                       
breakcmd                                              84      81      -3                                                                                                       
ash_main                                            1382    1379      -3                                                                                                       
evalloop                                             183     177      -6                                                                                                       
evalfor                                              231     225      -6                                                                                                       
------------------------------------------------------------------------------                                                                                                 
(add/remove: 0/0 grow/shrink: 3/6 up/down: 3/-22)             Total: -19 bytes

0 files changed, 0 insertions, 0 deletions