package/espeak: drop spurious space

Drop spurious space added by commit
10b6d10009c70262cfb492b2abaa3a091a8fb4aa

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

package/espeak/espeak.mk

@@ -32,7 +32,7 @@ define ESPEAK_CONFIGURE_CMDS
 endef
 
 define ESPEAK_BUILD_CMDS
-	$(TARGET_MAKE_ENV) $(MAKE) -C $(@D)/src  $(TARGET_CONFIGURE_OPTS) \
+	$(TARGET_MAKE_ENV) $(MAKE) -C $(@D)/src $(TARGET_CONFIGURE_OPTS) \
 		AUDIO="$(ESPEAK_AUDIO_BACKEND)" all
 endef