common: fix cmdline of indashes_to_underscores

Signed-off-by: Colin McCabe <colin.mccabe@dreamhost.com>

diff --git a/src/common/ceph_argparse.cc b/src/common/ceph_argparse.cc
index 7e68ef2be390fc2496ebaeb06252c44423537c72..e4e6989cc6c877c615f99a331ccf77a5877f7544 100644 (file)
--- a/src/common/ceph_argparse.cc
+++ b/src/common/ceph_argparse.cc
@@ -260,11 +260,11 @@ static void dashes_to_underscores(const char *input, char *output)
   char *o = output;
   const char *i = input;
   // first two characters are copied as-is
-  *o++ = *i++;
-  if (*o == '\0')
+  *o = *i++;
+  if (*o++ == '\0')
     return;
-  *o++ = *i++;
-  if (*o == '\0')
+  *o = *i++;
+  if (*o++ == '\0')
     return;
   for (; ((c = *i)); ++i) {
      if (c == '-')