package/samba4: fix configure cache preseed for fcntl capabilities

Fix the following build failure raised since bump to version 4.19.1 in
commit a8ff60cff9402dcd04fffb67af15dfe2caab0995 and
https://gitlab.com/samba-team/samba/-/commit/fb4bb188acfc3e88887b500a05e9e4db8b08aed3:

Cross answers file /home/buildroot/autobuild/instance-1/output-1/build/samba4-4.19.1/cache.txt is incomplete

Indeed, a typo in the configure script was fixed, which causes our
logic to preseed the configure cache with test results to no longer be
taken into account.

Fixes:
 - http://autobuild.buildroot.org/results/c1fbfdab11c0521b8199f6a661987eb6076c84d2

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/samba4/samba4.mk

@@ -118,7 +118,7 @@ SAMBA4_POST_INSTALL_TARGET_HOOKS += SAMBA4_REMOVE_CTDB_TESTS
 
 define SAMBA4_CONFIGURE_CMDS
 	$(INSTALL) -m 0644 package/samba4/samba4-cache.txt $(@D)/cache.txt;
-	echo 'Checking whether fcntl supports setting/geting hints: $(if $(BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_13),OK,NO)' >>$(@D)/cache.txt;
+	echo 'Checking whether fcntl supports setting/getting hints: $(if $(BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_13),OK,NO)' >>$(@D)/cache.txt;
 	echo 'Checking uname machine type: $(BR2_ARCH)' >>$(@D)/cache.txt;
 	(cd $(@D); \
 		$(SAMBA4_PYTHON) \