Split one-liner if () statements into 2 lines

src/encode/lzh.c

src/encode/uucode.c

src/sbbs3/ans2asc.c

src/sbbs3/answer.cpp

src/sbbs3/ars.c

src/sbbs3/atcodes.cpp

src/sbbs3/baja.c

src/sbbs3/chat.cpp

src/sbbs3/chk_ar.cpp

src/sbbs3/chksmb.c

src/sbbs3/con_out.cpp

src/sbbs3/data.cpp

src/sbbs3/download.cpp

src/sbbs3/exec.cpp

src/sbbs3/execfile.cpp

src/sbbs3/execfunc.cpp

src/sbbs3/execmisc.cpp

src/sbbs3/execmsg.cpp

src/sbbs3/execnet.cpp

src/sbbs3/filelist.c