python3-package.mk: fix syntax error in FindStdlibDepends

When running FindStdlib and running DependsCheckHostPipVersionMatch at
the same time, both commands were joined together resulting in a syntax
error.

Signed-off-by: Michal Vasilek <michal.vasilek@nic.cz>

lang/python/python3-package.mk

@@ -201,7 +201,7 @@ PYTHON3_PKG_HOST_PIP_INSTALL_ARGS = \
 	)
 
 define Py3Build/FindStdlibDepends
-	$(SHELL) $(python3_mk_path)python3-find-stdlib-depends.sh -n "$(PKG_NAME)" "$(PKG_BUILD_DIR)"
+	$(SHELL) $(python3_mk_path)python3-find-stdlib-depends.sh -n "$(PKG_NAME)" "$(PKG_BUILD_DIR)";
 endef
 
 ifneq ($(strip $(PYPI_NAME)),)