[PATCH] .gitignore: add multiple items to .gitignore

[Wang, Lei]

Add /.vscode/, .clang-format and .gdb_history to .gitignore because:

 - For VSCode, workspace settings as well as debugging and task
 configurations are stored at the root in a .vscode folder;
 - For ClangFormat, the .clang-format file is searched relative to
 the current working directory when reading stdin;
 - For GDB, GDB command history file defaults to the value of the
 environment variable GDBHISTFILE, or to ./.gdb_history if this
 variable is not set.

Signed-off-by: Wang, Lei <lei4.wang@intel.com>
---
 .gitignore | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/.gitignore b/.gitignore
index 8aab671265..61fa39967b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,10 +1,13 @@
 /GNUmakefile
 /build/
 /.cache/
+/.vscode/
 *.pyc
 .sdk
 .stgit-*
 .git-submodule-status
+.clang-format
+.gdb_history
 cscope.*
 tags
 TAGS
-- 
2.34.1