changed jpegenc.c to jpeg.c

Originally committed as revision 91 to svn://svn.ffmpeg.org/ffmpeg/trunk

libav/Makefile

 include ../config.mak
 CFLAGS= $(OPTFLAGS) -Wall -g -I../libavcodec -DHAVE_AV_CONFIG_H
 
-OBJS= rm.o mpeg.o asf.o avienc.o jpegenc.o swf.o wav.o raw.o \
+OBJS= rm.o mpeg.o asf.o avienc.o jpeg.o swf.o wav.o raw.o \
 	 avidec.o ffm.o \
 	 avio.o aviobuf.o utils.o \
 	 udp.o http.o file.o img.o