Fixed a typo in INSTALL.
Fixed a typo in INSTALL.

videolabs/taglib,MaxLeb/taglib,videolabs/taglib,pbhd/taglib,taglib/taglib,TsudaKageyu/taglib,Distrotech/taglib,i80and/taglib,Distrotech/taglib,black78/taglib,black78/taglib,black78/taglib,pbhd/taglib,dlz1123/taglib,dlz1123/taglib,Distrotech/taglib,TsudaKageyu/taglib,davispuh/taglib,i80and/taglib,taglib/taglib,davispuh/taglib,dlz1123/taglib,i80and/taglib,TsudaKageyu/taglib,MaxLeb/taglib,davispuh/taglib,videolabs/taglib,taglib/taglib,pbhd/taglib,MaxLeb/taglib