use DumperOptions.DefaultScalarStyle iterator in test
use DumperOptions.DefaultScalarStyle iterator in test

yeison/snakeyaml,youxinren/snakeyaml,Fighter777/snakeyaml,umeding/snakeyaml,cuizhennan/snakeyaml,mapiman/snakeyaml,marcuskara/snakeyaml,RussellSpitzer/snakeyaml,Mause/snakeyaml,joy32812/snakeyaml,yishenggudou/snakeyaml,nxbdi/snakeyaml,thinkofdeath/snakeyaml,yskumar007/snakeyaml,Akkrite/snakeyaml,ldh0826/snakeyaml,UcasRichard/snakeyaml,votinhthieugia/snakeyaml,ilantoren/snakeyaml,SorinS/snakeyaml,mc-nekoneko/snakeyaml,AssafMashiah/assafmashiah-yaml,virustotalop/snakeyaml,jeremypepper/snakeyaml