po/de.po: add/fix some German translations

po/de.po

@@ -15,7 +15,7 @@ msgstr ""
 "Project-Id-Version: sane-backends\n"
 "Report-Msgid-Bugs-To: sane-devel@alioth-lists.debian.net\n"
 "POT-Creation-Date: 2019-08-09 19:55+0200\n"
-"PO-Revision-Date: 2019-07-28 23:01+0200\n"
+"PO-Revision-Date: 2019-08-09 20:08+0200\n"
 "Last-Translator: Rolf Bensch <rolf@bensch-online.de>\n"
 "Language-Team: \n"
 "Language: de\n"
@@ -770,9 +770,9 @@ msgid "Analog gamma-correction for blue"
 msgstr "Analoge Gammakorrektur für Blau"
 
 #: include/sane/saneopts.h:415
-#, fuzzy, no-c-format
+#, no-c-format
 msgid "Warm up lamp before scanning"
-msgstr "Wärme die Lampe vor dem Scannen auf"
+msgstr "Lampe vor dem Scannen aufwärmen"
 
 #: include/sane/saneopts.h:417
 #, no-c-format
@@ -1263,9 +1263,9 @@ msgid "invalid bit IDENTIFY message"
 msgstr "Ungültige IDENTIFY Nachricht"
 
 #: backend/canon.c:460
-#, fuzzy, no-c-format
+#, no-c-format
 msgid "option not correct"
-msgstr "Option nicht verbunden"
+msgstr "Option nicht korrekt"
 
 #: backend/canon.c:474
 #, no-c-format
@@ -3242,16 +3242,16 @@ msgid "Force calibration ignoring all and any calibration caches"
 msgstr "Kalibrierung trotz Daten im Zwischenspeicher erzwingen"
 
 #: backend/genesys.cc:5274
-#, fuzzy, no-c-format
+#, no-c-format
 msgid "Ignore internal offsets"
-msgstr "Offset grüner Kanal"
+msgstr "Interne Offsets ignorieren"
 
 #: backend/genesys.cc:5276
 #, no-c-format
 msgid ""
 "Acquires the image including the internal calibration areas of the "
 "scanner"
-msgstr ""
+msgstr "Bild mit Kalibrierungsbereichen scannen"
 
 #: backend/gt68xx.c:149 backend/ma1509.c:108 backend/mustek.c:164
 #: backend/snapscan-options.c:87 backend/umax.c:182
@@ -4267,9 +4267,9 @@ msgid "crt"
 msgstr "Monitor"
 
 #: backend/kvs1025_opt.c:229
-#, fuzzy, no-c-format
+#, no-c-format
 msgid "linear"
-msgstr "Strichzeichnung"
+msgstr "linear"
 
 #: backend/kvs1025_opt.c:241 backend/kvs20xx_opt.c:138
 #: backend/kvs40xx_opt.c:224