Cleaned up spacing by removing dangling space character

There was a space before the tab making my editor scream, so I fixed it.

Author: GurliGebis

Dockerfile

@@ -25,7 +25,7 @@ RUN \
 	wget && \
  echo "**** install unifi ****" && \
  if [ -z ${UNIFI_VERSION+x} ]; then \
- 	UNIFI_VERSION=$(curl -sX GET http://dl-origin.ubnt.com/unifi/debian/dists/${UNIFI_BRANCH}/ubiquiti/binary-amd64/Packages \
+	UNIFI_VERSION=$(curl -sX GET http://dl-origin.ubnt.com/unifi/debian/dists/${UNIFI_BRANCH}/ubiquiti/binary-amd64/Packages \
 	|grep -A 7 -m 1 'Package: unifi' \
 	| awk -F ': ' '/Version/{print $2;exit}' \
 	| awk -F '-' '{print $1}'); \

Dockerfile.aarch64

@@ -25,7 +25,7 @@ RUN \
 	wget && \
  echo "**** install unifi ****" && \
  if [ -z ${UNIFI_VERSION+x} ]; then \
- 	UNIFI_VERSION=$(curl -sX GET http://dl-origin.ubnt.com/unifi/debian/dists/${UNIFI_BRANCH}/ubiquiti/binary-amd64/Packages \
+	UNIFI_VERSION=$(curl -sX GET http://dl-origin.ubnt.com/unifi/debian/dists/${UNIFI_BRANCH}/ubiquiti/binary-amd64/Packages \
 	|grep -A 7 -m 1 'Package: unifi' \
 	| awk -F ': ' '/Version/{print $2;exit}' \
 	| awk -F '-' '{print $1}'); \

Dockerfile.armhf

@@ -22,7 +22,7 @@ RUN \
 	wget && \
  echo "**** install unifi ****" && \
  if [ -z ${UNIFI_VERSION+x} ]; then \
- 	UNIFI_VERSION=$(curl -sX GET http://dl-origin.ubnt.com/unifi/debian/dists/${UNIFI_BRANCH}/ubiquiti/binary-amd64/Packages \
+	UNIFI_VERSION=$(curl -sX GET http://dl-origin.ubnt.com/unifi/debian/dists/${UNIFI_BRANCH}/ubiquiti/binary-amd64/Packages \
 	|grep -A 7 -m 1 'Package: unifi' \
 	| awk -F ': ' '/Version/{print $2;exit}' \
 	| awk -F '-' '{print $1}'); \