Update usage

Author: lechenyu

triton-san/script/build_triton_shared_with_triton_san.sh

@@ -4,7 +4,7 @@
 set -e
 
 if [ "$#" -lt 3 ]; then
-  echo "Usage: $0 <path to LLVM build directory> <path to Python venv> <path to triton>"
+  echo "Usage: $0 <path to LLVM build directory> <path to Python venv> <path to Triton source directory>"
   exit 1
 fi
 

triton-san/script/install_triton_san.sh

@@ -4,7 +4,7 @@
 set -e
 
 if [ "$#" -lt 4 ]; then
-  echo "Usage: $0 <desired path for triton-san installation> <path to LLVM install directory> <path to Python venv> <path to triton>"
+  echo "Usage: $0 <desired path for triton-san installation> <path to LLVM install directory> <path to Python venv> <path to Triton source directory>"
   exit 1
 fi