The trivial tweak below removes the spurious space pointed out in bug 79998 - typo in diagnostic "specified bound %wu". The patch has been committed in r251096.
Martin Index: gcc/gimple-ssa-sprintf.c =================================================================== --- gcc/gimple-ssa-sprintf.c (revision 251094) +++ gcc/gimple-ssa-sprintf.c (working copy) @@ -3868,7 +3868,7 @@ pass_sprintf_length::handle_gimple_call (gimple_st } else if (dstsize > target_int_max ()) warning_at (gimple_location (info.callstmt), info.warnopt (), - "specified bound %wu exceeds %<INT_MAX %>", + "specified bound %wu exceeds %<INT_MAX%>", dstsize); } else if (TREE_CODE (size) == SSA_NAME)