--- src/pgaxis.f.orig	1997-03-26 00:00:34.000000000 +0100
+++ src/pgaxis.f	2021-11-15 00:06:05.000000000 +0100
@@ -61,7 +61,7 @@
 C  DISP   (input)  : displacement of baseline of tick labels to
 C                    right of axis, in units of the character height.
 C  ORIENT (input)  : orientation of label text, in degrees; angle between
-C                    baseline of text and direction of axis (0-360°).
+C                    baseline of text and direction of axis (0-360).
 C--
 C 25-Mar-1997 - new routine [TJP].
 C-----------------------------------------------------------------------
diff -Nurd pgplot.old/src/pgtick.f pgplot/src/pgtick.f
--- src/pgtick.f.orig	1997-06-09 23:56:44.000000000 +0200
+++ src/pgtick.f	2021-11-15 00:05:51.000000000 +0100
@@ -27,7 +27,7 @@
 C  DISP   (input)  : displacement of label text to
 C                    right of axis, in units of the character height.
 C  ORIENT (input)  : orientation of label text, in degrees; angle between
-C                    baseline of text and direction of axis (0-360°).
+C                    baseline of text and direction of axis (0-360).
 C  STR    (input)  : text of label (may be blank).
 C--
 C 25-Mar-1997 - new routine [TJP].