Revert the last two commits

They should not have been pushed, sorry about that.

This reverts
- commit 8575bd06ae.
- commit 55bf52860e.

configure.ac

@@ -95,7 +95,7 @@ AC_ARG_ENABLE([gcc-warnings],
 AM_CONDITIONAL([ENABLE_GCC_WARNINGS], [test "$enable_gcc_warnings" = yes])
 if test "$enable_gcc_warnings" = yes; then
   warn_common='-Wall -Wextra -Wno-sign-compare -Wcast-align
-    -fparse-all-comments -Wdocumentation -Wextra-semi
+    -fparse-all-comments -Wdocumentation
     -Wformat -Wnull-dereference -Wpointer-arith -Wshadow -Wwrite-strings'
   warn_c='-Wbad-function-cast -Wstrict-prototypes'
   warn_cxx='-Wextra-semi -Wnoexcept'

src/fixits.c

@@ -33,7 +33,6 @@
 #include "quotearg.h"
 #include "vasnprintf.h"
 
-#include "complain.h"
 #include "files.h"
 
 typedef struct
@@ -98,13 +97,6 @@ fixits_run (void)
   if (!fixits)
     return;
 
-  if (!update_flag)
-    {
-      complain (NULL, Wother,
-                _("some fixes can be applied.  Rerun with option '--update'."));
-      return;
-    }
-
   /* This is not unlike what is done in location_caret.  */
   uniqstr input = ((fixit *) gl_list_get_at (fixits, 0))->location.start.file;
   /* Backup the file. */

src/main.c

@@ -105,6 +105,7 @@ main (int argc, char *argv[])
 
   /* Fix input file now, even if there are errors: that's less
      warnings in the following runs.  */
+  if (update_flag)
     fixits_run ();
   fixits_free ();