fix regex to check format of client signature

Jan Willamowius

2019-04-22 ce163ee12c0a1ad9de2936bf061bce0dccefd41b

 src/tools/base_lib/CMakeLists.txt

@@ -17,3 +17,5 @@
     tools_base
     ${EXTERNAL_LIBS}
)

install(TARGETS tools_base ARCHIVE DESTINATION lib)