Fixed the failing patten for detecting C++-only headers
Fixed the failing patten for detecting C++-only headers

matt40k/linguist,tschf/linguist,yscho/linguist,erkyrath/linguist,kyoungrok0517/linguist,whitj00/linguist,ppaulweber/github-linguist,Mx7f/linguist,meunierfrederic/octocatlinguist,chiranjeevjain/linguist,davidzchen/linguist,mattn/linguist,marcojonker/test,assimovt/ling-ist,github/linguist,douglas-larocca/linguist,scttnlsn/linguist,pchaigno/linguist,matt40k/linguist,erkyrath/linguist,MadcapJake/linguist,thejameskyle/linguist,tschf/linguist,douglas-larocca/linguist,Rockyspade/linguist,iblech/linguist,yscho/linguist,CoderXpert/linguist,iblech/linguist,hcutler/linguist,ya7lelkom/linguist,PsichiX/linguist,christop/linguist,erkyrath/linguist,cokeboL/linguist,alitalia/linguist,BerkeleyTrue/linguist,R4PaSs/linguist,ilyes14/linguist,nburkley/linguist,chiranjeevjain/linguist,MadcapJake/linguist,jjatria/linguist,osorgin/linguist,assimovt/ling-ist,yyx990803/linguist,jrnold/linguist,sideci-sample/sideci-sample-linguist,meunierfrederic/octocatlinguist,mcandre/linguist,CegepVictoriaville/linguist,bluebear94/linguist,seanders/linguist,0a-/linguist,seanders/linguist,marcojonker/test,pcantrell/linguist,stanhu/linguist,erkyrath/linguist,steventhanna/linguist,JJ/linguist,kr/linguist,wcandillon/linguist,alvarotrigo/linguist,SRI-CSL/linguist,kr/linguist,jjatria/linguist,christop/linguist,CegepVictoriaville/linguist,bluebear94/linguist,a0viedo/linguist,stanhu/linguist,sideci-sample/sideci-sample-linguist,hcutler/linguist,sebgod/linguist,JJ/linguist,sebgod/linguist,ammaraskar/linguist,sebgod/linguist,a0viedo/linguist,ya7lelkom/linguist,mwpastore/linguist,alvarotrigo/linguist,whitj00/linguist,FStarLang/linguist,PsichiX/linguist,c-lipka/linguist,phpsgi/linguist,MahmoudFayed/linguist,sagar290/linguist,meunierfrederic/octocatlinguist,yyx990803/linguist,yyx990803/linguist,jtbandes/linguist,stanhu/linguist,manveru/linguist,BerkeleyTrue/linguist,github/linguist,nburkley/linguist,sebgod/linguist,mwpastore/linguist,github/linguist,mcandre/linguist,JJ/linguist,pchaigno/linguist,wcandillon/linguist,Mx7f/linguist,sagar290/linguist,cybernet14/linguist,Rockyspade/linguist,adamkaplan/linguist,FStarLang/linguist,hcatlin/linguist,ppaulweber/github-linguist,0a-/linguist,georgesuperman/linguist,mattn/linguist,osorgin/linguist,manveru/linguist,jrnold/linguist,anhongyue/test222,scttnlsn/linguist,anhongyue/test222,ammaraskar/linguist,c-lipka/linguist,pchaigno/linguist,SRI-CSL/linguist,MostAwesomeDude/linguist,adamkaplan/linguist,martynbm/linguist,cybernet14/linguist,davidzchen/linguist,yyx990803/linguist,georgesuperman/linguist,github/linguist,pchaigno/linguist,hcatlin/linguist,ilyes14/linguist,JJ/linguist,thejameskyle/linguist,phpsgi/linguist,stanhu/linguist,cokeboL/linguist,MahmoudFayed/linguist,jtbandes/linguist,alitalia/linguist,MostAwesomeDude/linguist,R4PaSs/linguist,kyoungrok0517/linguist,steventhanna/linguist,CoderXpert/linguist,pcantrell/linguist,martynbm/linguist