[configure.in] Look for pango.pc.in instead of ChangeLog
[configure.in] Look for pango.pc.in instead of ChangeLog

OpenInkpot-archive/iplinux-pango1.0,bratsche/pango,zsx/pango,bratsche/pango,Distrotech/pango,kari-lentz/alpha-pango,bratsche/pango,OpenInkpot-archive/iplinux-pango1.0,danny-ku/pango,Distrotech/pango,danny-ku/pango,Distrotech/pango,kari-lentz/alpha-pango,kari-lentz/alpha-pango,zsx/pango,bratsche/pango,zsx/pango,kari-lentz/alpha-pango,OpenInkpot-archive/iplinux-pango1.0,zsx/pango,danny-ku/pango