forked from Imagelibrary/binutils-gdb
A future patch will add more situations that calculates "lines around a certain point" to be printed using print_source_lines, and the logic could be re-used. As a preparation for those commits, this one factors out that part of the logic of the list command into its own function. No functional changes are expected Approved-By: Tom Tromey <tom@tromey.com>