enc/backward_references.c: fix indent
enc/backward_references.c: fix indent

reindent after c24f895

Change-Id: I55adcbef21ea3fdaded84b138745515596191a09

Suvarna1488/webm.libwebp,Aexyn/libwebp,redengineer/libwebp,reimaginemedia/webm.libwebp,imazen/libwebp,ericmckean/webm.libwebp,ttyangf/libwebp,yohunl/libwebp,ericmckean/webm.libwebp,webmproject/libwebp,matanbs/webm.libwebp,redengineer/libwebp,rxl194/libwebp,Acidburn0zzz/webm.libwebp,Aexyn/libwebp,ya7lelkom/libwebp,kim42083/webm.libwebp,reimaginemedia/webm.libwebp,Acidburn0zzz/webm.libwebp,altogother/webm.libwebp,yohunl/libwebp,comoyo/gonzo-libwebp,comoyo/gonzo-libwebp,jiehu5114/libwebp,webmproject/libwebp,gshORTON/webm.libwebp,PKRoma/libwebp,kim42083/webm.libwebp,imazen/libwebp,zofuthan/libwebp,abwiz0086/webm.libwebp,iniwf/webm.libwebp,abwiz0086/webm.libwebp,rxl194/libwebp,altogother/webm.libwebp,kleopatra999/webm.libwebp,Maria1099/webm.libwebp,kleopatra999/webm.libwebp,gshORTON/webm.libwebp,Maria1099/webm.libwebp,Maria1099/webm.libwebp,matanbs/webm.libwebp,kalli123/webm.libwebp,abwiz0086/webm.libwebp,kleopatra999/webm.libwebp,kim42083/webm.libwebp,rxl194/libwebp,zofuthan/libwebp,matanbs/webm.libwebp,webmproject/libwebp,comoyo/gonzo-libwebp,kalli123/webm.libwebp,yohunl/libwebp,kleopatra999/webm.libwebp,Suvarna1488/webm.libwebp,iniwf/webm.libwebp,ericmckean/webm.libwebp,jiehu5114/libwebp,altogother/webm.libwebp,Suvarna1488/webm.libwebp,matanbs/webm.libwebp,rxl194/libwebp,comoyo/gonzo-libwebp,ericmckean/webm.libwebp,Maria1099/webm.libwebp,PKRoma/libwebp,redengineer/libwebp,ttyangf/libwebp,zofuthan/libwebp,reimaginemedia/webm.libwebp,yohunl/libwebp,imazen/libwebp,reimaginemedia/webm.libwebp,kim42083/webm.libwebp,Suvarna1488/webm.libwebp,webmproject/libwebp,comoyo/gonzo-libwebp,jacklicn/libwebp,ya7lelkom/libwebp,iniwf/webm.libwebp,zofuthan/libwebp,Suvarna1488/webm.libwebp,altogother/webm.libwebp,jiehu5114/libwebp,PKRoma/libwebp,jiehu5114/libwebp,webmproject/libwebp,Acidburn0zzz/webm.libwebp,ya7lelkom/libwebp,Maria1099/webm.libwebp,redengineer/libwebp,jiehu5114/libwebp,abwiz0086/webm.libwebp,iniwf/webm.libwebp,PKRoma/libwebp,ya7lelkom/libwebp,rxl194/libwebp,ericmckean/webm.libwebp,zofuthan/libwebp,gshORTON/webm.libwebp,gshORTON/webm.libwebp,PKRoma/libwebp,kalli123/webm.libwebp,abwiz0086/webm.libwebp,imazen/libwebp,Acidburn0zzz/webm.libwebp,reimaginemedia/webm.libwebp,Aexyn/libwebp,ttyangf/libwebp,comoyo/gonzo-libwebp,jacklicn/libwebp,kim42083/webm.libwebp,ya7lelkom/libwebp,jacklicn/libwebp,yohunl/libwebp,redengineer/libwebp,ttyangf/libwebp,Aexyn/libwebp,kalli123/webm.libwebp,comoyo/gonzo-libwebp,gshORTON/webm.libwebp,iniwf/webm.libwebp,PKRoma/libwebp,jacklicn/libwebp,altogother/webm.libwebp,ttyangf/libwebp,imazen/libwebp,matanbs/webm.libwebp,kalli123/webm.libwebp,kleopatra999/webm.libwebp,jacklicn/libwebp,Acidburn0zzz/webm.libwebp,Aexyn/libwebp