removed --include again and stuffed the libcurl's include path in --cflags

curl-config.in

@@ -19,7 +19,6 @@ Available values for OPTION include:
   --cflags    pre-processor and compiler flags
   --feature   newline separated list of enabled features
   --help      display this help and exit
-  --include   display compiler flag(s) to set curl\'s include path
   --libs      library linking information
   --prefix    curl install prefix
   --version   output version information
@@ -74,11 +73,7 @@ while test $# -gt 0; do
 	;;
 
     --cflags)
-       	echo @CPPFLAGS@
-       	;;
-
-    --include)
-       	echo -I@includedir@
+       	echo -I@includedir@ @CPPFLAGS@
        	;;
 
     --libs)
@@ -86,6 +81,7 @@ while test $# -gt 0; do
        	;;
 
     *)
+        echo "unknown option: $1"
 	usage
 	exit 1
 	;;