man: bootchart: change /var/log to /run/log

As of [1], bootchart stores files in /run/log, not /var/log, by default.

[1] f2f85884ca

src/bootchart/README

@@ -18,7 +18,7 @@ where possible problems exist in the startup sequence of the system.
 Of course, bootchart can also be used at any moment in time to collect and
 graph some data for an amount of time. Bootchart does not even require root
 privileges to do so, and will happily run as a normal user. Bootchart graphs
-are by default written time-stamped in /var/log.
+are by default written time-stamped in /run/log.
 
 --
 

src/bootchart/bootchart.conf

@@ -12,7 +12,7 @@
 #freq=25
 #rel=0
 #filter=1
-#output=<folder name, defaults to /var/log>
+#output=<folder name, defaults to /run/log>
 #init=/path/to/init-binary
 #pss=0
 #entropy=0

src/bootchart/svg.c

@@ -98,7 +98,7 @@ static void svg_header(void)
         svg("<!-- such as Chrome, Chromium, or Firefox. Other applications that       -->\n");
         svg("<!-- render these files properly but more slowly are ImageMagick, gimp,  -->\n");
         svg("<!-- inkscape, etc. To display the files on your system, just point      -->\n");
-        svg("<!-- your browser to file:///var/log/ and click. This bootchart was      -->\n\n");
+        svg("<!-- your browser to file:///run/log/ and click. This bootchart was      -->\n\n");
 
         svg("<!-- generated by bootchart version %s, running with options:  -->\n", VERSION);
         svg("<!-- hz=\"%f\" n=\"%d\" -->\n", hz, len);