Added a comment about a redundant variable

scripts/ac_mkbuilddir.sh

@@ -20,7 +20,7 @@ ALTER_CONF=${ALTER_CONF_DEFAULT}
 
 while [ "$#" -gt 0 ]
 do
-	case $1 in  
+	case $1 in
 		-h|--help)
 			echo "You can set up a build directory separe of the ASTAROTH_HOME"
 			echo "Available flags:"
@@ -66,12 +66,14 @@ mkdir ${BUILD_DIR}
 cd ${BUILD_DIR}
 
 #Set up the astaroth.conf to be define and customized in the build directory to
-#not always alter the default use i.e. for unit test etc. 
+#not always alter the default use i.e. for unit test etc.
 #Assumed by default if you do this thing anyway.
 echo "cp ${AC_HOME}/config/astaroth.conf ${PWD}"
 cp ${AC_HOME}/config/astaroth.conf .
 
-CONF_DIR="-D ASTAROTH_CONF_PATH=${PWD}"
+CONF_DIR="-D ASTAROTH_CONF_PATH=${PWD}" # JP: Warning, not used in src/standalone/CMakeLists.txt.
+                                        # The config path supplied by cmake and this define
+                                        # is redundant.
 
 
 #cmake -D CMAKE_C_COMPILER=icc -D CMAKE_CXX_COMPILER=icpc -DDOUBLE_PRECISION=OFF -DBUILD_DEBUG=OFF ${AC_HOME}