qemu-iotests: Be more flexible with image creation options

qemu-iotests already filters out image creation options that may be
present or not in order to get the same output in both cases. However,
often it only considers the default value of the option. Cover all valid
values instead so that ./check -o name=value can be used successfull for
all of them.
Signed-off-by: NKevin Wolf <kwolf@redhat.com>

tests/qemu-iotests/039.out

 QA output created by 039
 
 == Checking that image is clean on shutdown ==
-Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 lazy_refcounts=on 
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 
 wrote 512/512 bytes at offset 0
 512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 incompatible_features     0x0
 No errors were found on the image.
 
 == Creating a dirty image file ==
-Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 lazy_refcounts=on 
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 
 wrote 512/512 bytes at offset 0
 512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 incompatible_features     0x1
@@ -34,7 +34,7 @@ read 512/512 bytes at offset 0
 512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 
 == Opening a dirty image read/write should repair it ==
-Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 lazy_refcounts=on 
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 
 wrote 512/512 bytes at offset 0
 512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
 incompatible_features     0x1

tests/qemu-iotests/common.rc

@@ -110,11 +110,11 @@ _make_test_img()
     	sed -e "s#$IMGFMT#IMGFMT#g" | \
 	sed -e "s# encryption=off##g" | \
 	sed -e "s# cluster_size=[0-9]\\+##g" | \
-	sed -e "s# table_size=0##g" | \
+	sed -e "s# table_size=[0-9]\\+##g" | \
 	sed -e "s# compat='[^']*'##g" | \
-	sed -e "s# compat6=off##g" | \
-	sed -e "s# static=off##g" | \
-	sed -e "s# lazy_refcounts=off##g"
+	sed -e "s# compat6=\\(on\\|off\\)##g" | \
+	sed -e "s# static=\\(on\\|off\\)##g" | \
+	sed -e "s# lazy_refcounts=\\(on\\|off\\)##g"
 }
 
 _cleanup_test_img()