spec/utr50/symbols/math: [Halfwidth and Fullwidth Forms]

Author: fantasai

spec/utr50/symbols/math.txt

@@ -830,7 +830,7 @@ See also [[spec:utr50:symbols:arrows]]
 |[[http://www.fileformat.info/info/unicode/char/FF1C/index.htm|U+FF1C]]|FULLWIDTH LESS-THAN SIGN|''＜''|U|R|
 |[[http://www.fileformat.info/info/unicode/char/FF1D/index.htm|U+FF1D]]|FULLWIDTH EQUALS SIGN|''＝''|U|R|Relational operators are sideways in East Asian|
 |[[http://www.fileformat.info/info/unicode/char/FF1E/index.htm|U+FF1E]]|FULLWIDTH GREATER-THAN SIGN|''＞''|U|R|
-|[[http://www.fileformat.info/info/unicode/char/FF5C/index.htm|U+FF5C]]|FULLWIDTH VERTICAL LINE|''｜''|T<sub>R</sub>|T<sub>R</sub>|
+|[[http://www.fileformat.info/info/unicode/char/FF5C/index.htm|U+FF5C]]|FULLWIDTH VERTICAL LINE|''｜''|T<sub>R</sub>|T<sub>R</sub>|Most fonts seem to have rotated glyph|
 |[[http://www.fileformat.info/info/unicode/char/FF5E/index.htm|U+FF5E]]|FULLWIDTH TILDE|''～''|T<sub>R</sub>|T<sub>R</sub>|See [[spec:utr50:punctuation#punctuation-dash-pd|Punctuation, Dash (Pd)]] :?: DVO=S|
 |[[http://www.fileformat.info/info/unicode/char/FFE2/index.htm|U+FFE2]]|FULLWIDTH NOT SIGN|''￢''|U|U|