#4671 build_info outputs extraneous empty lines

[Robert Dodier]

Commit [ e8eaaba ] introduced a bug which is visible in the output of build_info, which causes an extra empty line to be output after each line of actual output.

Looks like that commit changed OUTPUT-LINEAR in src/displa.lisp -- my guess is that it is now outputting some line terminators where it didn't before.

Correct (pre-e8eaaba) output:

(%i1) build_info()
(%o1) 
Maxima-version: "branch_5_48_base_224_geb00d13"
Maxima build date: "2026-02-14 10:53:30"
Host type: "x86_64-pc-linux-gnu"
Lisp implementation type: "CLISP"
Lisp implementation version: "2.49.93+ (2024-07-04) (built 3935171094) (memory 3980084028)"
User dir: "/home/dodier/.maxima"
Temp dir: "/tmp"
Object dir: "/home/dodier/sourceforge/maxima-code/binary/branch_5_48_base_224_geb00d13/clisp/2_49_93___2024_07_04___built_3935171094___memory_3980084028_"
Frontend: false

Incorrect output:

(%i1) build_info()
(%o1) 

Maxima-version: "branch_5_48_base_224_geb00d13"

Maxima build date: "2026-02-14 10:55:26"

Host type: "x86_64-pc-linux-gnu"

Lisp implementation type: "CLISP"

Lisp implementation version: "2.49.93+ (2024-07-04) (built 3935171094) (memory 3980084144)"

User dir: "/home/dodier/.maxima"

Temp dir: "/tmp"

Object dir: "/home/dodier/sourceforge/maxima-code/binary/branch_5_48_base_224_geb00d13/clisp/2_49_93___2024_07_04___built_3935171094___memory_3980084144_"

Frontend: false