add a trailing null char to the encoded string after base64'ing it

Author: plainlystated

src/tempodb/base64.c

@@ -60,7 +60,7 @@ char *encode_base64(int size, unsigned char *src) {
   if(!size)
     size= strlen((char *)src);
 
-  out= malloc(sizeof(char) * size*4/3+4);
+  out= malloc(sizeof(char) * size*4/3+4 + 1);
 
   p= out;
 
@@ -97,6 +97,7 @@ char *encode_base64(int size, unsigned char *src) {
     }
 
   }
+  *p++ = '\0';
 
   return out;