sdk-installer: Fix unclear SDK installer message

When the host and the SDK architectures are incompatible the SDK installer outputs an incomplete error message "Error: Installation machine not supported!". This commit adds a more verbose error message e.g "Error: Incompatible SDK installer! Your host is i686 and this SDK was built for x86_64 hosts."

---
 meta/files/toolchain-shar-extract.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

index 66c017f..9295ddc 100644
@@ -28,7 +28,7 @@ fi
 if [ "$INST_ARCH" != "$SDK_ARCH" ]; then
 	# Allow for installation of ix86 SDK on x86_64 host
 	if [ "$INST_ARCH" != x86_64 -o "$SDK_ARCH" != ix86 ]; then
-		echo "Error: Installation machine not supported!"
+		echo "Error: Incompatible SDK installer! Your host is $INST_ARCH and this SDK was built for $SDK_ARCH hosts."
 		exit 1
 	fi
 fi

2.10.1