make style: take care of EOF LF

HACKING.txt

@@ -258,9 +258,7 @@ you shouldn't use it (same for _FOOBAR_H).
 
 === WHITESPACE ===
 
-Avoid trailing whitespace (no line should end in tab or space). People forget
-this all the time if their editor doesn't handle it, but don't be surprised if
-you see someone fixing it from time to time.
-"make style" will take care of that.
-
+Avoid trailing whitespace (no line should end in tab or space).
 Keep a newline (blank line) at the end of each file.
+
+"make style" will take care of both.

Makefile

@@ -106,8 +106,14 @@ endif
 print-%: ; @echo $* = $($*)
 
 style:
+	# Make sure astyle is installed
 	@which astyle >/dev/null || ( echo "Please install 'astyle' package first" ; exit 1 )
-	find . \( -name "*.[ch]" -or -name "*.cpp" -or -name "*.lua" -or -name "Makefile" \) -exec perl -pi -e 's/[ \t\r]+$$//' {} \;
+	# Remove spaces & tabs at EOL, add LF at EOF if needed on *.c, *.h, *.cpp. *.lua, *.py, *.pl, Makefile
+	find . \( -name "*.[ch]" -or -name "*.cpp" -or -name "*.lua" -or -name "*.py" -or -name "*.pl" -or -name "Makefile" \) \
+	    -exec perl -pi -e 's/[ \t\r]+$$//' {} \; \
+	    -exec sh -c "tail -c1 {} | xxd -p | tail -1 | grep -q -v 0a$$" \; \
+	    -exec sh -c "echo >> {}" \;
+	# Apply astyle on *.c, *.h, *.cpp
 	find . \( -name "*.[ch]" -or -name "*.cpp" \) -exec astyle --formatted --mode=c --suffix=none \
 	    --indent=spaces=4 --indent-switches --indent-preprocessor \
 	    --keep-one-line-blocks --max-instatement-indent=60 \