Chore/change lang detection logging level to avoid warning log spamming (#4078)

This PR changes the log line for defaulting short text to English to
debug level.
- this log is not because the logic failed or exception handling
- short text can be common and we can get a lot of warning logs with the
original code -> spams warning log and potentially cause user to miss
other important warning level logs

Author: badGarnet

CHANGELOG.md

@@ -1,3 +1,13 @@
+## 0.18.14-dev0
+
+### Enhancements
+
+### Features
+
+### Fixes
+
+- **change short text language detection log to debug** reduce warning level log spamming
+
 ## 0.18.13
 
 ### Enhancements
@@ -6,7 +16,7 @@
 
 ### Fixes
 
-- **Parse a wider variety of date formats in email headers** The `partition_email` function is now more robust to non-standard date formats, including ISO-8601 dates with "Z" suffixes. This prevents `ValueError` exceptions when partitioning emails with these date formats. 
+- **Parse a wider variety of date formats in email headers** The `partition_email` function is now more robust to non-standard date formats, including ISO-8601 dates with "Z" suffixes. This prevents `ValueError` exceptions when partitioning emails with these date formats.
 
 ## 0.18.12
 

unstructured/__version__.py

@@ -1 +1 @@
-__version__ = "0.18.13"  # pragma: no cover
+__version__ = "0.18.14-dev0"  # pragma: no cover

unstructured/partition/common/lang.py

@@ -403,7 +403,7 @@ def detect_languages(
     # If text contains special characters (like ñ, å, or Korean/Mandarin/etc.) it will NOT default
     # to English. It will default to English if text is only ascii characters and is short.
     if re.match(r"^[\x00-\x7F]+$", text) and len(text.split()) < 5:
-        logger.warning(f'short text: "{text}". Defaulting to English.')
+        logger.debug(f'short text: "{text}". Defaulting to English.')
         return ["eng"]
 
     # set seed for deterministic langdetect outputs