master d5c6f70 3/3: Fix byte-compilation warnings

[Mattias Engdegård]

branch: master
commit d5c6f701a64413667fb573e12e05b89f8704c3f7
Author: Mattias Engdegård <mattiase@acm.org>
Commit: Mattias Engdegård <mattiase@acm.org>

    Fix byte-compilation warnings
    
    * lisp/calc/calc-graph.el (calc-gnuplot-check-for-errors):
    * lisp/calendar/holidays.el (list-holidays):
    Dodge 'save-excursion+set-buffer' warnings that appeared after
    the progn flattening was introduced.
---
 lisp/calc/calc-graph.el   | 14 ++++++--------
 lisp/calendar/holidays.el |  2 +-
 2 files changed, 7 insertions(+), 9 deletions(-)

diff --git a/lisp/calc/calc-graph.el b/lisp/calc/calc-graph.el
index 9dfdba3..7891e35 100644
--- a/lisp/calc/calc-graph.el
+++ b/lisp/calc/calc-graph.el
@@ -1403,14 +1403,12 @@ This \"dumb\" driver will be present in Gnuplot 3.0."
     (or calc-graph-no-auto-view (sit-for 0))))
 
 (defun calc-gnuplot-check-for-errors ()
-  (if (save-excursion
-       (prog2
-        (progn
-          (set-buffer calc-gnuplot-buffer)
-          (goto-char calc-gnuplot-last-error-pos))
-        (re-search-forward "^[ \t]+\\^$" nil t)
-        (goto-char (point-max))
-        (setq calc-gnuplot-last-error-pos (point-max))))
+  (if (with-current-buffer calc-gnuplot-buffer
+       (goto-char calc-gnuplot-last-error-pos)
+        (prog1
+           (re-search-forward "^[ \t]+\\^$" nil t)
+         (goto-char (point-max))
+         (setq calc-gnuplot-last-error-pos (point-max))))
       (calc-graph-view-trail)))
 
 (defun calc-gnuplot-command (&rest args)
diff --git a/lisp/calendar/holidays.el b/lisp/calendar/holidays.el
index 3eae2dc..bda5dc5 100644
--- a/lisp/calendar/holidays.el
+++ b/lisp/calendar/holidays.el
@@ -482,7 +482,7 @@ The optional LABEL is used to label the buffer created."
       (calendar-increment-month displayed-month displayed-year 3)
       (setq s (calendar-absolute-from-gregorian
                (list displayed-month 1 displayed-year))))
-    (save-excursion
+    (save-current-buffer
       (calendar-in-read-only-buffer holiday-buffer
         (calendar-set-mode-line
          (if (= y1 y2)