[nrf fromtree] scripts: logging: dictionary: log_parser: Fix linter issues

Fix issues reported by ruff.

Signed-off-by: Pieter De Gendt <[email protected]>
(cherry picked from commit ffeca16)

Author: pdgendt

.ruff-excludes.toml

@@ -568,10 +568,6 @@
     "UP036",    # https://docs.astral.sh/ruff/rules/outdated-version-block
     "UP038",    # https://docs.astral.sh/ruff/rules/non-pep604-isinstance
 ]
-"./scripts/logging/dictionary/log_parser.py" = [
-    "SIM115",   # https://docs.astral.sh/ruff/rules/open-file-with-context-handler
-    "UP015",    # https://docs.astral.sh/ruff/rules/redundant-open-modes
-]
 "./scripts/make_bugs_pickle.py" = [
     "UP006",    # https://docs.astral.sh/ruff/rules/non-pep585-annotation
     "UP035",    # https://docs.astral.sh/ruff/rules/deprecated-import

scripts/logging/dictionary/log_parser.py

@@ -57,7 +57,7 @@ def read_log_file(args):
         else:
             hexdata = ''
 
-            with open(args.logfile, "r", encoding="iso-8859-1") as hexfile:
+            with open(args.logfile, encoding="iso-8859-1") as hexfile:
                 for line in hexfile.readlines():
                     hexdata += line.strip()
 
@@ -90,14 +90,11 @@ def read_log_file(args):
 
             logdata = binascii.unhexlify(hexdata[:idx])
     else:
-        logfile = open(args.logfile, "rb")
-        if not logfile:
-            logger.error("ERROR: Cannot open binary log data file: %s, exiting...", args.logfile)
-            sys.exit(1)
-
-        logdata = logfile.read()
-
-        logfile.close()
+        with open(args.logfile, "rb") as logfile:
+            if not logfile:
+                logger.error(f"ERROR: Cannot open binary log data file: {args.logfile}, exiting...")
+                sys.exit(1)
+            logdata = logfile.read()
 
     return logdata