fix bug in 'defaultweight' calculation on OSD start.

 awk: cmd. line:1: { d=$2/1073741824 ; r = sprintf(\"%.2f\", d); print r }
 awk: cmd. line:1:                                 ^ backslash not last character on line
 awk: cmd. line:1: { d=$2/1073741824 ; r = sprintf(\"%.2f\", d); print r }
 awk: cmd. line:1:                                 ^ syntax error