Fix use of Id keyword in comment.

git-svn-id: https://smartmontools.svn.sourceforge.net/svnroot/smartmontools/trunk@2838 4ea69e1a-61f1-4043-bf83-b5c94c648137

sm5/Makefile.am

@@ -274,7 +274,7 @@ svnversion.h: CHANGELOG Makefile $(srcdir)/.svn/entries
 	| sed 's,^,#define SMARTMONTOOLS_SVN_,' >> $@
 else
 
-# SVN not available, guess version info from $Id$ strings
+# SVN not available, guess version info from Id strings
 svnversion.h: CHANGELOG Makefile
 	echo '/* svnversion.h.  Generated by Makefile from Id strings.  */' > $@
 	(cd $(srcdir) && cat Makefile.am configure.in smart*.in *.cpp *.h *.s) \