Fix make clobber in several entries

This is for updating the manifest.

1992/gson/Makefile

@@ -216,7 +216,7 @@ clean:
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
 	${RM} -rf *.dSYM
-	${RM} -f og
+	${RM} -f og words
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \

2011/fredriksson/Makefile

@@ -203,7 +203,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
-	${RM} -rf *.dSYM
+	${RM} -rf *.dSYM ag.c ag
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \

2011/vik/Makefile

@@ -202,7 +202,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
-	${RM} -rf *.dSYM
+	${RM} -rf *.dSYM *.wav
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \

2012/omoikane/Makefile

@@ -215,7 +215,7 @@ clean:
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
 	${RM} -rf *.dSYM
-	${RM} -f output.c key.c data.c regenerated.bin
+	${RM} -f output.c key.c data.c regenerated.bin data output output.2
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \

2012/vik/Makefile

@@ -204,7 +204,7 @@ clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
 	${RM} -rf *.dSYM
 	${RM} -f encodedimg.png restored.png chocolate-in-ioccc.png ioccc-in-chocolate.png
-	${RM} -f restored-chocolate.png restored-ioccc.png
+	${RM} -f restored-chocolate.png restored-ioccc.png mmm-chocolate.png
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \