logging: add LogPrintfCategory to log unconditionally with category

prefixing the output with the passed category name.

- add documentation
- add a unit test
- update lint-logs.py
- update lint-format-strings.py

2 files changed, 3 insertions, 2 deletions

diff --git a/test/lint/lint-format-strings.py b/test/lint/lint-format-strings.py
index 412cf86791..522023e328 100755
--- a/test/lint/lint-format-strings.py
+++ b/test/lint/lint-format-strings.py
@@ -22,6 +22,7 @@ FUNCTION_NAMES_AND_NUMBER_OF_LEADING_ARGUMENTS = [
     'LogConnectFailure,1',
     'LogPrint,1',
     'LogPrintf,0',
+    'LogPrintfCategory,1',
     'LogPrintLevel,2',
     'printf,0',
     'snprintf,2',
diff --git a/test/lint/lint-logs.py b/test/lint/lint-logs.py
index de53729b4e..aaf697467d 100755
--- a/test/lint/lint-logs.py
+++ b/test/lint/lint-logs.py
@@ -16,12 +16,12 @@ from subprocess import check_output
 
 
 def main():
-    logs_list = check_output(["git", "grep", "--extended-regexp", r"(LogPrintLevel|LogPrintf?)\(", "--", "*.cpp"], universal_newlines=True, encoding="utf8").splitlines()
+    logs_list = check_output(["git", "grep", "--extended-regexp", r"(LogPrintLevel|LogPrintfCategory|LogPrintf?)\(", "--", "*.cpp"], universal_newlines=True, encoding="utf8").splitlines()
 
     unterminated_logs = [line for line in logs_list if not re.search(r'(\\n"|/\* Continued \*/)', line)]
 
     if unterminated_logs != []:
-        print("All calls to LogPrintf(), LogPrint(), LogPrintLevel(), and WalletLogPrintf() should be terminated with \"\\n\".")
+        print("All calls to LogPrintf(), LogPrintfCategory(), LogPrint(), LogPrintLevel(), and WalletLogPrintf() should be terminated with \"\\n\".")
         print("")
 
         for line in unterminated_logs: