Fix off-by-one in log output line length (#6896)

diff --git a/src/log.cpp b/src/log.cpp
index 589cfd909806ee7ba6be55d720c6f06ba486a6bf..0dec7dd7053fc8d0525ae3a68e497de961d0ff29 100644 (file)
--- a/src/log.cpp
+++ b/src/log.cpp
@@ -347,13 +347,10 @@ void StringBuffer::push_back(char c)
                        flush(std::string(buffer, buffer_index));
                buffer_index = 0;
        } else {
-               int index = buffer_index;
-               buffer[index++] = c;
-               if (index >= BUFFER_LENGTH) {
+               buffer[buffer_index++] = c;
+               if (buffer_index >= BUFFER_LENGTH) {
                        flush(std::string(buffer, buffer_index));
                        buffer_index = 0;
-               } else {
-                       buffer_index = index;
                }
        }
 }