Fix check for simple table delimiters.

ReST simple tables use "=" instead of "-". I ended testing it with
a table modified from a complex one, using "--- --- ---", instead
of searching for a real Kernel example.

Only noticed when adding an unit test and seek for an actual
example from kernel-doc markups.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
 tools/lib/python/kdoc/kdoc_output.py | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/lib/python/kdoc/kdoc_output.py b/tools/lib/python/kdoc/kdoc_output.py
index 1b54117dbe19..2bfcd356654b 100644
--- a/tools/lib/python/kdoc/kdoc_output.py
+++ b/tools/lib/python/kdoc/kdoc_output.py
@@ -846,14 +846,14 @@ class ManFormat(OutputFormat):
         colspec_row = None
 
         pos = []
-        for m in KernRe(r'\-+').finditer(lines[i]):
+        for m in KernRe(r'\=+').finditer(lines[i]):
             pos.append((m.start(), m.end() - 1))
 
         i += 1
         while i < len(lines):
             line = lines[i]
 
-            if KernRe(r"^\s*[\-]+[ \t\-]+$").match(line):
+            if KernRe(r"^\s*[\=]+[ \t\=]+$").match(line):
                 i += 1
                 break
 
@@ -969,7 +969,7 @@ class ManFormat(OutputFormat):
                     self.data += text
                     continue
 
-                if KernRe(r"^\-+[ \t]\-[ \t\-]+$").match(line):
+                if KernRe(r"^\=+[ \t]\=[ \t\=]+$").match(line):
                     i, text = self.simple_table(lines, i)
                     self.data += text
                     continue
-- 
2.53.0