pkg-autotools: Remove useless space

Signed-off-by: Maxime Hadjinlian <maxime.hadjinlian@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/pkg-autotools.mk

@@ -157,7 +157,7 @@ $(2)_MAKE_ENV			?=
 $(2)_MAKE_OPTS			?=
 $(2)_INSTALL_OPTS                ?= install
 $(2)_INSTALL_STAGING_OPTS	?= DESTDIR=$$(STAGING_DIR) install
-$(2)_INSTALL_TARGET_OPTS		?= DESTDIR=$$(TARGET_DIR)  install
+$(2)_INSTALL_TARGET_OPTS		?= DESTDIR=$$(TARGET_DIR) install
 
 # This must be repeated from inner-generic-package, otherwise we get an empty
 # _DEPENDENCIES if _AUTORECONF is YES.  Also filter the result of _AUTORECONF