layers/loader: Fix string validation error
diff --git a/layers/vk_layer_utils.cpp b/layers/vk_layer_utils.cpp
index f849aa4..22fb52f 100644
--- a/layers/vk_layer_utils.cpp
+++ b/layers/vk_layer_utils.cpp
@@ -616,7 +616,7 @@
     {
         if (utf8[i] == 0) {
             break;
-        } else if ((utf8[i] > 0x20) && (utf8[i] < 0x7f)) {
+        } else if ((utf8[i] >= 0x20) && (utf8[i] < 0x7f)) {
             num_char_bytes = 0;
         } else if ((utf8[i] & UTF8_ONE_BYTE_MASK)   == UTF8_ONE_BYTE_CODE) {
             num_char_bytes = 1;