maint: make spacing around "=" consistent, even in IF_LINT

E.g.,
  -  size_t desired_width IF_LINT (= 0);
  +  size_t desired_width IF_LINT ( = 0);
Use this command:
  g grep -l IF_LINT | grep '\.[ch]$' \
    | xargs perl -pi -e 's/(IF_LINT \()= /$1 = /'

1 files changed, 1 insertions, 1 deletions

diff --git a/src/truncate.c b/src/truncate.c
index 493f7f791..610787df7 100644
--- a/src/truncate.c
+++ b/src/truncate.c
@@ -228,7 +228,7 @@ int
 main (int argc, char **argv)
 {
   bool got_size = false;
-  off_t size IF_LINT (= 0);
+  off_t size IF_LINT ( = 0);
   off_t rsize = -1;
   rel_mode_t rel_mode = rm_abs;
   mode_t omode;