[PATCH] binman: Fix SyntaxWarning: invalid escape sequence '\('

[Rong Tao]

From: Rong Tao <rongtao at cestc.cn>

Reproduct warning:

    $ sudo git clean -dfx
    $ make CROSS_COMPILE="" qemu-x86_64_defconfig
    $ sudo make -j8
    ...
    u-boot/tools/binman/etype/section.py:25:
    SyntaxWarning: invalid escape sequence '\('
    """Entry that contains other entries

Signed-off-by: Rong Tao <rongtao at cestc.cn>
---
 tools/binman/etype/section.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/binman/etype/section.py b/tools/binman/etype/section.py
index fb49e85a7634..30c1041c7e8d 100644
--- a/tools/binman/etype/section.py
+++ b/tools/binman/etype/section.py
@@ -40,7 +40,7 @@ class Entry_section(Entry):
     For example code, see etypes which subclass `Entry_section`, or `cbfs.py`
     for a more involved example::
 
-       $ grep -l \(Entry_section tools/binman/etype/*.py
+       $ grep -l \\(Entry_section tools/binman/etype/*.py
 
     ReadNode()
         Call `super().ReadNode()`, then read any special properties for the
-- 
2.41.0