doc: Fix typos in text docs

doc/rst/source/text.rst

@@ -168,9 +168,9 @@ Optional Arguments
     [0/0]. If *dy* is not specified then it is set equal to *dx*. Prepend
     an optional directive:
 
-    - **-j** - Offset the text away from the point instead (i.e., the
+    - **j** - Offset the text away from the point instead (i.e., the
       text justification will determine the direction of the shift).
-    - **-J** - Shorten diagonal offsets at corners by :math:`\sqrt{2}`.
+    - **J** - Shorten diagonal offsets at corners by :math:`\sqrt{2}`.
 
     Optionally, append the modifier:
 
@@ -196,25 +196,29 @@ Optional Arguments
       at the Upper Left corner of the map.
     - **+f** - Set the font ([*size*][,\ *fontname*][,\ *color*]); if no font info
       is given then the input file must have this information in one of its columns.
-    - **+h** - Use the most recent segment header as the text to be plotted.
-      comes from the data record.  Instead, use **+h** or **+l** to select the
     - **+j** - Set the text justification; if no justification is given then the input
       file must have this item as a column. 
+
+    Normally, the text is read from the data records. Alternative ways to provide text:
+
+    - **+h** - Use the most recent segment header as the text to be plotted.
     - **+l** - Use the most recent segment label as the text to be plotted.
     - **+r** - Use the record number (counting up from *first* [0]) as the text to be plotted.
     - **+t** - Use the appended *text* to set a fixed text string (if *text* contains plus
       characters then the **+t** modifier must be the last modifier in |-F|).
     - **+z** - Format incoming *z* values to a string using the supplied *format* 
       [if not appended we use :term:`FORMAT_FLOAT_MAP`].
 
-     **Notes**: (1) If |-Z| is in effect then the *z* value used for formatting is in the
-     4th, not 3rd column. If you only want a specific word from the trailing text and
-     not the whole line, use **-it**\ *word* to indicate which word (0 is the first word)
-     you want. (2) Items read from the data file should be in the same order as
-     the modifiers are specified with the |-F| option. Example:
-     **-F**\ **+f**\ 12p,Helvetica-Bold,red\ **+j+a** selects a 12p red
-     Helvetica-Bold font and expects to read the justification and angle
-     from the file, in that order, after *x* *y* and before *text*.
+    **Notes**: |-F|\ **+h**\|\ **l**\|\ **r**\|\ **t**\| **z** can't be used with |-M|.
+
+    **Notes**: (1) If |-Z| is in effect then the *z* value used for formatting is in the
+    4th, not 3rd column. If you only want a specific word from the trailing text and
+    not the whole line, use **-it**\ *word* to indicate which word (0 is the first word)
+    you want. (2) Items read from the data file should be in the same order as
+    the modifiers are specified with the |-F| option. Example:
+    **-F**\ **+f**\ 12p,Helvetica-Bold,red\ **+j+a** selects a 12p red
+    Helvetica-Bold font and expects to read the justification and angle
+    from the file, in that order, after *x* *y* and before *text*.
 
 .. _-G:
 

src/pstext.c

@@ -713,7 +713,7 @@ static int parse (struct GMT_CTRL *GMT, struct PSTEXT_CTRL *Ctrl, struct GMT_OPT
 	n_errors += gmt_M_check_condition (GMT, Ctrl->G.mode && Ctrl->M.active, "Option -Gc: Cannot be used with -M.\n");
 	n_errors += gmt_M_check_condition (GMT, Ctrl->G.mode && Ctrl->W.active, "Option -Gc: Cannot be used with -W.\n");
 	n_errors += gmt_M_check_condition (GMT, Ctrl->G.mode && Ctrl->D.line, "Option -Gc: Cannot be used with -D...v<pen>.\n");
-	n_errors += gmt_M_check_condition (GMT, Ctrl->M.active && Ctrl->F.get_text, "Option -M: Cannot be used with -F...+l|h.\n");
+	n_errors += gmt_M_check_condition (GMT, Ctrl->M.active && Ctrl->F.get_text, "Option -M: Cannot be used with -F...+l|h|r|t|z.\n");
 	n_errors += gmt_M_check_condition (GMT, Ctrl->S.active && !(Ctrl->G.active && Ctrl->G.mode == 0), "Option -S: Requires -G as well.\n");
 	n_errors += gmt_M_check_condition (GMT, strchr ("cC", Ctrl->C.mode) && !Ctrl->M.active, "Option -C: Box shape mode +tc|C is only available when -M is selected.\n");