java/eclipse: fix whitespace in Makefile.plugins

PR:		237280

java/eclipse/Makefile.plugins

@@ -3,10 +3,11 @@ NO_BUILD=	yes
 USE_JAVA=	yes
 JAVA_VERSION=	1.8+
 
-REPO_DIRS?=     features plugins
+REPO_DIRS?=	features plugins
 
 do-install:
 	@${MKDIR} ${STAGEDIR}${PREFIX}/share/eclipse/dropins/${PORTNAME}/eclipse
 	@(cd ${WRKSRC}; ${COPYTREE_SHARE} "${REPO_DIRS}" ${STAGEDIR}${PREFIX}/share/eclipse/dropins/${PORTNAME}/eclipse/)
 	@(cd ${STAGEDIR}${PREFIX}; ${FIND} -s share/eclipse/dropins/${PORTNAME} -not -type d) >> ${TMPPLIST}
 	@(cd ${STAGEDIR}${PREFIX}; ${FIND} -s -d share/eclipse/dropins/${PORTNAME} -type d -empty) | ${SED} -ne 's,^,@dir ,p' >> ${TMPPLIST}
+