Fixed memory leak with add

dmg/Makefile

@@ -1,6 +1,6 @@
 DMGOBJS=dmg.o base64.o resources.o checksum.o udif.o partition.o io.o abstractfile.o zlib-1.2.3/libz.a
 HFSOBJS=../hfs/volume.o ../hfs/btree.o ../hfs/extents.o ../hfs/rawfile.o ../hfs/catalog.o ../hfs/flatfile.o ../hfs/utility.o
-CFLAGS=-g -D_FILE_OFFSET_BITS=64
+CFLAGS=-D_FILE_OFFSET_BITS=64
 
 all: dmg
 

hfs/hfs.c

@@ -176,6 +176,8 @@ void writeToHFSFile(HFSPlusCatalogFile* file, FILE* input, Volume* volume) {
 			bytesLeft -= bytesLeft;
 		}
 	}
+
+	CLOSE(io);
 }
 
 void cmd_cat(Volume* volume, int argc, const char *argv[]) {