#5890 slur-configuration: fix size_t conversion warning

[Han-Wen Nienhuys]

https://codereview.appspot.com/545860043

[Anonymous]

Passes make, make check and a full make doc

[Anonymous]

Patch on countdown for April 17th

[Anonymous]

Patch counted down - please push.

[Jonas Hahnfeld]

commit a457b689b062e7dad3ad8e4d2a935638860f453f
Author:     Han-Wen Nienhuys <hanwen@lilypond.org>
AuthorDate: Sun Apr 12 12:02:15 2020 +0200
Commit:     Han-Wen Nienhuys <hanwen@lilypond.org>
CommitDate: Fri Apr 17 11:59:04 2020 +0200

    slur-configuration: fix size_t conversion warning

[Dan Eble]

I'm getting a new warning from slur-scoring today:

Making lily/out/slur-scoring.o < cc
/home/user/lilypond-src/lily/slur-scoring.cc: In static member function 'static scm_unused_struct* Slur::calc_control_points(SCM)':
/home/user/lilypond-src/lily/slur-scoring.cc:390:45: warning: format '%d' expects argument of type 'int', but argument 3 has type 'size_t' {aka 'long unsigned int'} [-Wformat=]
  390 |       total += to_string (" TOTAL=%.2f idx=%d", best->score (), best->index_);
      |                                            ~^                   ~~~~~~~~~~~~
      |                                             |                         |
      |                                             int                       size_t {aka long unsigned int}
      |                                            %ld