client: default client source dir to src if clientRootDir is not empt… #33647

Job	Run time
build-matrix	16s
vue-default (n22.11.0/j21)	14m 47s
vue-default-additional (n20/j21)	8m 25s
vue-noi18n-mysql-ws-oauth2 (n20/j21)	15m 12s
vue-fulli18n-mysql-es (n20/j23)	11m 41s
vue-gradle-h2mem-ws-session (n22.11.0/j17)	10m 43s
vue-h2disk-ws-theme (n20/j17)	10m 46s
vue-session-cassandra-fr (n22.11.0/j17)	9m 51s
ms-mf-vue-consul-oauth2-mysql-memcached (n20/j21)	15m 49s
stack-vue-no-db (n18/j23)	10m 0s
check-vue	1s
	1h 47m 31s

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