Fixed Git function in update script

bin/update

@@ -33,13 +33,14 @@ function ee_lib_error()
 function ee_lib_git()
 {
 	for ee_git_dir in ${@:1:$(($#-1))}; do
+		if [ -d $ee_git_dir ]; then
 			# Change directory
-		cd $ee_git_dir || ee_lib_error "Unable to change directory $ee_git_dir, exit status = " $?
+	 		cd $ee_git_dir 
 
 			# Check .git
 			if [ ! -d .git ]; then
 				# ee_lib_echo "Initialize Git on ${ee_git_dir}"
-			git init &>> $EE_UPDATE_LOG \
+				git init &>> $EE_COMMAND_LOG \
 				|| ee_lib_error "Unable to initialize Git on $ee_git_dir, exit status = " $?
 			fi
 
@@ -47,9 +48,10 @@ function ee_lib_git()
 			if [ $(git status -s | wc -l) -ne 0 ]; then
 				# Add files in Git version control
 				ee_lib_echo "Git commit on $ee_git_dir, please wait..."
-			git add --all && git commit -am "${@: -1}" &>> $EE_UPDATE_LOG \
+				git add --all && git commit -am "${@: -1}" &>> $EE_COMMAND_LOG \
 				|| ee_lib_error "Unable to Git commit on $ee_git_dir, exit status = " $?
 			fi
+		fi
 	done
 }