lttng-tools: comma separate licenses

[Thomas: put between parenthesis the description of what is covered by
each license.]

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/lttng-tools/lttng-tools.mk

@@ -7,7 +7,7 @@
 LTTNG_TOOLS_VERSION = 2.7.0
 LTTNG_TOOLS_SITE = http://lttng.org/files/lttng-tools
 LTTNG_TOOLS_SOURCE = lttng-tools-$(LTTNG_TOOLS_VERSION).tar.bz2
-LTTNG_TOOLS_LICENSE = GPLv2+; LGPLv2.1+ for include/lttng/* and src/lib/lttng-ctl/*
+LTTNG_TOOLS_LICENSE = GPLv2+, LGPLv2.1+ (include/lttng/*, src/lib/lttng-ctl/*)
 LTTNG_TOOLS_LICENSE_FILES = gpl-2.0.txt lgpl-2.1.txt LICENSE
 LTTNG_TOOLS_CONF_OPTS += --with-xml-prefix=$(STAGING_DIR)/usr
 # Need autoreconf because of a patch touching configure.ac