Hadn't noticed that the linebreak for last change was on a single line.
My apologies. Have redone patch with appropriate line breaks as per the CG.
This selects the language for the warning messages.
@item LILYPOND_GC_YIELD
-A variable, as a percentage, that tunes memory management behavior. A higher values means the program uses more memory, a smaller value means more CPU time is used. The default value is @code{70}.
+A variable, as a percentage, that tunes memory management
+behavior. A higher values means the program uses more memory, a
+smaller value means more CPU time is used. The default value is
+@code{70}.
@end table