minor - remove trailing whitespace (#11407)

health/Makefile.am

@@ -44,7 +44,7 @@ dist_healthconfig_DATA = \
     health.d/entropy.conf \
     health.d/exporting.conf \
     health.d/fping.conf \
-    health.d/geth.conf \ 
+    health.d/geth.conf \
     health.d/ioping.conf \
     health.d/fronius.conf \
     health.d/gearman.conf \