Add VERSION_STRING check and move fs found message behind the debug message (#91)

Signed-off-by: Krisztian Szilvasi <34309983+kr-t@users.noreply.github.com>

Author: kr-t

src/shared/platform/posix/core_fs.c

@@ -110,7 +110,7 @@ static int lsdir(const char *path) {
     }
 
     while ((entry = readdir(dirp)) != NULL) {
-        LOG_INF("Found: %s", entry->d_name);
+        LOG_DBG("Found: %s", entry->d_name);
     }
 
     if (closedir(dirp) < 0) {

src/shared/platform/posix/core_internal.h

@@ -137,7 +137,9 @@ void set_argc(int argc);
 /**
  * @brief Application version string.
  */
+#ifndef APP_VERSION_STRING
 #define APP_VERSION_STRING           "0.0.0-dev"
+#endif /* APP_VERSION_STRING */
 
 /**
  * @brief Default heap buffer size for WAMR (in bytes).