add gpg fingerprint for experimental

Signed-off-by: Jessica Frazelle <princess@docker.com>

hack/install.sh

@@ -207,6 +207,8 @@ do_install() {
 					$sh_c "apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 36A1D7869245C8950F966E92D8576A8BA88D21E9"
 				elif [ "https://test.docker.com/" = "$url" ]; then
 					$sh_c "apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 740B314AE3941731B942C66ADF4FD13717AAD7D6"
+				elif [ "https://experimental.docker.com/" = "$url" ]; then
+					$sh_c "apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys E33FF7BF5C91D50A6F91FFFD4CC38D40F9A96B49"
 				else
 					$sh_c "$curl ${url}gpg | apt-key add -"
 				fi

hack/release.sh

@@ -284,6 +284,8 @@ EOF
 	local gpgFingerprint=36A1D7869245C8950F966E92D8576A8BA88D21E9
 	if [[ $BUCKET == test* ]]; then
 		gpgFingerprint=740B314AE3941731B942C66ADF4FD13717AAD7D6
+	elif [[ $BUCKET == experimental* ]]; then
+		gpgFingerprint=E33FF7BF5C91D50A6F91FFFD4CC38D40F9A96B49
 	fi
 
 	# Upload repo