[PATCH v2 28/40] docs: scheduler: sched-deadline.rst: Use ASCII subset instead of UTF-8 alternate symbols

The conversion tools used during DocBook/LaTeX/Markdown->ReST conversion
and some automatic rules which exists on certain text editors like
LibreOffice turned ASCII characters into some UTF-8 alternatives that
are better displayed on html and PDF.

While it is OK to use UTF-8 characters in Linux, it is better to
use the ASCII subset instead of using an UTF-8 equivalent character
as it makes life easier for tools like grep, and are easier to edit
with the some commonly used text/source code editors.

Also, Sphinx already do such conversion automatically outside literal blocks:
   https://docutils.sourceforge.io/docs/user/smartquotes.html

So, replace the occurences of the following UTF-8 characters:

	- U+2212 ('−'): MINUS SIGN

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
 Documentation/scheduler/sched-deadline.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/scheduler/sched-deadline.rst b/Documentation/scheduler/sched-deadline.rst
index 9d9be52f221a..657ffb04b4d6 100644
--- a/Documentation/scheduler/sched-deadline.rst
+++ b/Documentation/scheduler/sched-deadline.rst

@@ -359,7 +359,7 @@ Deadline Task Scheduling
  More precisely, it can be proven that using a global EDF scheduler the
  maximum tardiness of each task is smaller or equal than
 
-	((M − 1) · WCET_max − WCET_min)/(M − (M − 2) · U_max) + WCET_max
+	((M - 1) · WCET_max - WCET_min)/(M - (M - 2) · U_max) + WCET_max
 
  where WCET_max = max{WCET_i} is the maximum WCET, WCET_min=min{WCET_i}
  is the minimum WCET, and U_max = max{WCET_i/P_i} is the maximum

-- 
2.30.2