Takes care of errors when running something like:
$ ./scripts/patch-kernel . .. 3.5
Current kernel version is 3.5.0-rc7 ( Saber-toothed Squirrel)
./scripts/patch-kernel: line 229: [: -lt: unary operator expected
./scripts/patch-kernel: line 252: [: -gt: unary operator expected
diff --git a/scripts/patch-kernel b/scripts/patch-kernel
index d000ea3..a7672eb 100755
--- a/scripts/patch-kernel
+++ b/scripts/patch-kernel
@@ -226,7 +226,7 @@ fi
# This all assumes a 2.6.x[.y] kernel tree.
# Don't allow backwards/reverse patching.
-if [ $STOPSUBLEVEL -lt $SUBLEVEL ]; then
+if [ "$STOPSUBLEVEL"0 -lt "$SUBLEVEL"0 ]; then
backwards
fi
@@ -249,7 +249,7 @@ fi
# If not ending sublevel is specified, it is incremented until
# no further sublevels are found.
-if [ $STOPSUBLEVEL -gt $SUBLEVEL ]; then
+if [ "$STOPSUBLEVEL"0 -gt "$SUBLEVEL"0 ]; then
while : # incrementing SUBLEVEL (s in v.p.s)
do
CURRENTFULLVERSION="$VERSION.$PATCHLEVEL.$SUBLEVEL"
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