i#5860 glibc sym: Print whole symbol name in error message

[derekbruening]

A too-recent symbol with a long name had its name omitted from our error message because readelf -s truncated it:

CMake Error at core/CMake_readelf.cmake:165 (message):
  *** Error:
  build_package/build_release-64/bin64/drconfig has too-recent import(s):

     GLOBAL DEFAULT  UND _[...]@GLIBC_2.34

Adding --wide produces the symbol name:

CMake Error at core/CMake_readelf.cmake:165 (message):
  *** Error:
  build_package/build_release-64/bin64/drconfig has too-recent import(s):

     GLOBAL DEFAULT  UND __libc_start_main@GLIBC_2.34
     GLOBAL DEFAULT  UND __libc_start_main@GLIBC_2.34

Issue: #5860