bc: rewrite "BOOL * EXPR" idiom as if() statement

function                                             old     new   delta
bc_program_index                                      66      64      -2
bc_program_num                                      1147    1130     -17
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(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-19)             Total: -19 bytes
   text	   data	    bss	    dec	    hex	filename
 987619	    485	   7296	 995400	  f3048	busybox_old
 987600	    485	   7296	 995381	  f3035	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
1 file changed