Fix pkg-config scripts.

kcgi-html.in.pc

@@ -7,7 +7,7 @@ Name: kcgi HTML output library
 Description: HTML output for kcgi
 URL: https://kristaps.bsd.lv/kcgi
 Version: @VERSION@
-Requires: kcgi-@VERSION@
+Requires: kcgi = @VERSION@
 Libs.private: 
 Libs: -L${libdir} -lkcgihtml
 Cflags: -I${includedir}

kcgi-json.in.pc

@@ -7,7 +7,7 @@ Name: kcgi JSON output library
 Description: JSON output for kcgi
 URL: https://kristaps.bsd.lv/kcgi
 Version: @VERSION@
-Requires: kcgi-@VERSION@
+Requires: kcgi = @VERSION@
 Libs.private: 
 Libs: -L${libdir} -lkcgijson -lm
 Cflags: -I${includedir}

kcgi-xml.in.pc

@@ -3,11 +3,11 @@ exec_prefix=${prefix}
 libdir=@LIBDIR@
 includedir=@INCLUDEDIR@
 
-Name: kcgi
-Description: minimal CGI and FastCGI library
+Name: kcgi XML output library
+Description: XML output for kcgi
 URL: https://kristaps.bsd.lv/kcgi
 Version: @VERSION@
-Requires:
+Requires: kcgi = @VERSION@
 Libs.private: 
-Libs: -L${libdir} -lkcgi @LDADD@
+Libs: -L${libdir} -lkcgixml
 Cflags: -I${includedir}