Bdlcc skiplist no const char star drqs 164519609 (#3017)
Bdlcc skiplist no const char star drqs 164519609 (#3017)

* bdlcc_skiplist.t.cpp: omit testing 'const char *' type.

* bdlcc_skiplist.t.cpp: doc tweak

* bdlcc_skiplist.t.cpp: another doc tweak

* bdlcc_skiplist.t.cpp: another doc tweak

bloomberg/bde,bloomberg/bde,bloomberg/bde,bloomberg/bde,bloomberg/bde