test: ctime_tests usage always suggests using libtool #1697

1. 
   fanquake commented at 3:13 pm on July 9, 2025: member

   It will probably be suprising for someone building binaries using CMake to be recommened to run them under libtool:

   0cmake -B build
   1cmake --build build
   2./build/bin/ctime_tests 
   3This test can only usefully be run inside valgrind because it was not compiled under msan.
   4Usage: libtool --mode=execute valgrind ./ctime_tests
   

2. real-or-random added the label assurance on Jul 11, 2025
3. real-or-random added the label user-documentation on Jul 11, 2025

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