[bootlin/training-materials] 557df7: debugging: labs: remove space before question mark

[Luca Ceresoli]

  Branch: refs/heads/master
  Home:   https://github.com/bootlin/training-materials
  Commit: 557df737a7a1c3f9b5954eb11d55024da86e797a
      https://github.com/bootlin/training-materials/commit/557df737a7a1c3f9b5954eb11d55024da86e797a
  Author: Luca Ceresoli <luca.ceresoli at bootlin.com>
  Date:   2023-03-21 (Tue, 21 Mar 2023)

  Changed paths:
    M labs/debugging-application-profiling/debugging-application-profiling.tex
    M labs/debugging-application-tracing/debugging-application-tracing.tex
    M labs/debugging-memory-issues/debugging-memory-issues.tex
    M labs/debugging-system-status/debugging-system-status.tex

  Log Message:
  -----------
  debugging: labs: remove space before question mark

Unlike French, in English there is no space before ending punctuation.

Just replace ' ?' -> '?', no other content change.

Signed-off-by: Luca Ceresoli <luca.ceresoli at bootlin.com>