fix: fix reanme source & dest variable

Author: xiaoyu2er

.github/workflows/update-en-docs.yml

@@ -99,16 +99,17 @@ jobs:
               # For each renamed file
               echo "$RENAMES" | while read -r LINE; do
                 # Split the line into source and destination
-                SOURCE=$(echo "$LINE" | awk '{print $1}')
-                DEST=$(echo "$LINE" | awk '{print $2}')
+                # After sed processing, each LINE is in format: "oldname -> newname"
+                SOURCE=$(echo "$LINE" | awk -F ' -> ' '{print $1}')
+                DEST=$(echo "$LINE" | awk -F ' -> ' '{print $2}')
                 
                 # Check if there are actual content changes using git diff with -M (detect renames)
                 # If there's output from the diff command beyond the rename header, there are content changes
                 DIFF_OUTPUT=$(git diff --cached -M -- "$SOURCE" "$DEST")
                 # Count lines that start with +/- (changes) but ignore the rename header lines
                 CHANGE_COUNT=$(echo "$DIFF_OUTPUT" | grep -v "^renamed:" | grep -v "^─" | grep -E "^\+|^-" | wc -l)
                 
-                echo "Git diff for $SOURCE → $DEST: $CHANGE_COUNT lines changed"
+                echo "Git diff for '$SOURCE' → '$DEST': $CHANGE_COUNT lines changed"
                 
                 # Determine if this is just a rename or if content was also changed
                 if [ "$CHANGE_COUNT" -eq 0 ]; then