add a trailing zero to $float

Author: reactormonk

lib/system/sysstr.nim

@@ -254,6 +254,8 @@ proc nimFloatToStr(x: float): string {.compilerproc.} =
   var buf: array [0..59, char]
   c_sprintf(buf, "%#.f", x)
   result = $buf
+  if result[len(result)-1] == '.':
+    result.add("0")
 
 proc nimInt64ToStr(x: int64): string {.compilerRtl.} =
   result = newString(sizeof(x)*4)