package/flare-engine: drop spurious space

Drop spurious space added by commit
419b68eef5bc98b53514eff41b56a11f66e3898a

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/flare-engine/flare-engine.mk

@@ -5,7 +5,7 @@
 ################################################################################
 
 FLARE_ENGINE_VERSION = 1.11
-FLARE_ENGINE_SITE =  $(call github,flareteam,flare-engine,v$(FLARE_ENGINE_VERSION))
+FLARE_ENGINE_SITE = $(call github,flareteam,flare-engine,v$(FLARE_ENGINE_VERSION))
 FLARE_ENGINE_LICENSE = GPL-3.0+
 FLARE_ENGINE_LICENSE_FILES = COPYING