fix: correct duckdb iii usage/error text

Author: Chessing234

mimic-iii/buildmimic/duckdb/import_duckdb.sh

@@ -39,7 +39,7 @@ echo "$0 $* " | grep -Eq " -h | --help " && usage
 
 # rename CLI positional args to more friendly variable names
 MIMIC_DIR=$1
-# allow optional specification of duckdb name, otherwise default to mimic4.db
+# allow optional specification of duckdb name, otherwise default to mimic3.db
 OUTFILE=mimic3.db
 if [ -n "$2" ]; then
     OUTFILE=$2
@@ -54,7 +54,7 @@ elif [ ! -d "$MIMIC_DIR" ]; then
     yell "Specified directory \"$MIMIC_DIR\" does not exist."
     die "Usage: ./import_duckdb.sh mimic_data_dir [output_db]"
 elif [ -n "$3" ]; then
-    yell "import.sh takes a maximum of two arguments."
+    yell "import_duckdb.sh takes a maximum of two arguments."
     die "Usage: ./import_duckdb.sh mimic_data_dir [output_db]"
 elif [ -s "$OUTFILE" ]; then
 	yell "File \"$OUTFILE\" already exists."